# Property of PMA Electrical Solutions, LLC.
#
# ABB ACS 600 running the STANDARD APPLICATION PROGRAM 6.x, controlled through
# the EMBEDDED Standard Modbus Link.
#
# CLAIMED: ACS 600 with Standard Application Program 6.x and 98.07 COMM
# PROFILE = ABB DRIVES.
# NOT CLAIMED:
#   * Any other ACS 600 application program (System, Pump Control,
#     Master/Follower, Crane). The Group 3 signal indexes, the fault-word bit
#     names, the group 52 defaults and the rating parameter in this file were
#     read out of the Standard Application Program manual and hold for that
#     program alone.
#   * Program versions 2.8 and 3.0. Those use the CSA 2.8/3.0 communication
#     profile, whose Control and Status Words are DIFFERENT tables (C-19 and
#     C-20) — [FW] p. C-17. If 98.07 is set to CSA 2.8/3.0 the control words
#     below are wrong. The ABB Drives profile requires program 5.0 or later.
#   * The ACS 100 / 140 / 160 / 400 (different documents, different mapping
#     detail, and the ACS 100 has no serial interface at all — see
#     docs/UNSUPPORTED.md), and the ACS 800, which is a separate file. The ABB
#     Drives control/status word LAYOUT is shared across ABB's portfolio; the
#     addresses, scalings and bit names here are claimed for the ACS 600 alone.
#
# COMMUNICATION PATH — EMBEDDED, NO ADAPTER MODULE.
# "The modular jacks (X28 and X29) on the ACS 600 NIOC-01 board form the
# Standard Modbus Link. The Link can be used for external control by a Modbus
# RTU-protocol controller" ([FW] p. C-5). An NBCI Panel Bus Connection
# Interface gives galvanic isolation and long-distance/parallel wiring; an
# NPCU-01 PC Connection Unit converts to RS-232. Neither is required for a
# direct RS-485 master.
# THE OTHER PATH IS NOT THIS ONE. The ACS 600 also has a fibre-optic DDCS
# channel CH0 on the NDCO board that takes a separate fieldbus adapter module
# ([FW] p. C-1, Figure C-1). That path uses Group 51, not Group 52. This file
# describes the embedded link only.
#
# SOURCE — primary ABB documentation only:
#   [FW]  ACS 600 Firmware Manual, Standard Application Program 6.x for ACS 600
#         Frequency Converters, 3AFY 61201441 R0725 EN, effective 16.10.2000,
#         supersedes 06.09.1999.
#         manuals/abb_acs600_stdprg_firmware_manual.pdf
# Page ranges each section came from (PRINTED page numbers; Appendix pages are
# printed "A-1", "C-5" etc. and the PDF index is offset by 208 in Appendix C —
# printed C-18 is PDF page 226):
#   [FW] p.  C-1        Figure C-1, the two independent fieldbus channels
#   [FW] p.  C-5        Standard Modbus Link, Table C-3 set-up parameters
#   [FW] pp. C-6..C-8   Table C-4 drive control parameters
#   [FW] pp. C-9..C-12  data-set update times, reference scaling table (C-11)
#   [FW] p.  C-13       reference direction diagrams
#   [FW] p.  C-14       Modbus addressing table (40001-40012), Actual Values
#   [FW] p.  C-17       communication profiles, 98.07
#   [FW] p.  C-18       Table C-5 Control Word bits
#   [FW] p.  C-19       Table C-6 Status Word bits
#   [FW] p.  C-20       Figure C-4 state machine
#   [FW] pp. C-21..C-23 Table C-7 aux status, C-9 FAULT WORD 1, C-10 FAULT
#                       WORD 2, C-11 SYSTEM FAULT WORD, C-12 ALARM WORD 1
#   [FW] pp. A-1..A-3   Table A-1 group 1 actual signals, Table A-3 group 3,
#                       each with its Modbus register number and fieldbus scaling
#   [FW] p.  A-12       Group 52 alternative settings
#   [FW] p.  A-4        Group 99 start-up data, 99.06 MOTOR NOM CURRENT
#   [FW] pp. 7-3, 7-8   COMM MODULE warning / fault-tracing entries
#   [FW] pp. B-5, B-7   Appendix B default settings: 30.18 / 30.19, group 52
#
# DRIVE-SIDE SETUP. Without these the drive ACKs writes and ignores them:
#   98.02 COMM. MODULE LINK = STD MODBUS   initialises the Standard Modbus Link
#                                          and activates Group 52 ([FW] p. C-5)
#   98.07 COMM PROFILE      = ABB DRIVES   REQUIRED for this profile. It
#                                          affects BOTH channels ([FW] p. C-17)
#   52.01 STATION NUMBER    = 1..247       (default 1)
#   52.02 BAUDRATE          (default 9600) Table C-3 lists 600/1200/2400/4800/
#                                          9600; the Group 52 alternatives on
#                                          [FW] p. A-12 also list 19200. Treat
#                                          19200 as unconfirmed on this link.
#   52.03 PARITY = ODD (default) / EVEN / NONE1STOPBIT / NONE2STOPBIT
#   10.01 EXT1 STRT/STP/DIR = COMM.MODULE  fieldbus Control Word commands
#   10.02 EXT2 STRT/STP/DIR = COMM.MODULE
#   10.03 DIRECTION         = REQUEST      or reverse is refused
#   11.02 EXT1/EXT2 SELECT  = COMM.MODULE  Control Word bit 11 picks EXT1/EXT2
#   11.03 EXT REF1 SELECT   = COMM.REF     fieldbus REF1 becomes the reference
#   11.06 EXT REF2 SELECT   = COMM.REF
#   16.01 RUN ENABLE        = COMM.MODULE  then CW bit 3 also drives Run Enable
#   16.04 FAULT RESET SEL   = COMM.MODULE  enables CW bit 7 reset
#   16.07 PARAM SAVE                       fieldbus writes are not auto-saved
#   30.18 COMM FAULT FUNC / 30.19 MAIN REF DS T-OUT — see the watchdog note
#
# ADDRESSING FORMULA — 0-BASED PROTOCOL ADDRESSES THROUGHOUT, never 4xxxx.
# Two mappings, both published by ABB:
#   (a) The fixed data-set registers, [FW] p. C-14:
#         40001 Control Word  40004 Status Word
#         40002 REF1          40005 ACT1
#         40003 REF2          40006 ACT2
#         40007 REF3          40010 ACT3
#         40008 REF4          40011 ACT4
#         40009 REF5          40012 ACT5
#   (b) Every actual signal and parameter, through the "Modbus/Modbus Plus
#       Par. No." column of Appendix A — e.g. 1.04 CURRENT is 40104, 3.05
#       FAULT WORD 1 is 40305, 99.06 MOTOR NOM CURRENT is 49906. That column
#       is 4GGPP: group GG, index PP.
# Modbus holding register 40001 is protocol address 0, so throughout this file
#     0-based = (4xxxx number) - 40001 = 100 * group + index - 1
# Worked examples:
#     Control Word     40001 -> 40001 - 40001 = 0
#     Status Word      40004 -> 40004 - 40001 = 3
#     REF3             40007 -> 40007 - 40001 = 6
#     ACT3             40010 -> 40010 - 40001 = 9
#     1.04 CURRENT     40104 -> 40104 - 40001 = 100*1  +  4 - 1 = 103
#     3.05 FAULT WORD1 40305 -> 40305 - 40001 = 100*3  +  5 - 1 = 304
#     99.06 MOTOR NOM CURRENT -> 49906 - 40001 = 100*99 + 6 - 1 = 9905
#
# CONFIGURATION-DEPENDENT, do not treat any of this as fixed:
#   - REF1/REF2 scaling is 20000 = parameter 11.05 EXT REF1 MAXIMUM (or 11.08
#     for REF2), and 11.05 is a SPEED reference in rpm that the site sets
#     ([FW] p. C-11, the scaling table — the diagrams on pp. C-12/C-13 are
#     illustrations of it). The normative raw range is -32765..32765, so a
#     value beyond +/-20000 overshoots 11.05. (+/-32767 are the axis end
#     labels on the direction diagrams, not the table's range.)
#     REF2's scaling factor is selected by the APPLICATION MACRO 99.02, not by
#     an abstract reference type: FACTORY / HAND-AUTO / SEQ CTRL give a speed
#     reference at 20000 = [11.08]; T CTRL and MASTER/FOLLOWER give torque and
#     PID CTRL gives PID, both at 10000. This profile assumes a speed
#     reference. Percent is what the register takes; it is NOT Hz and NOT rpm.
#     The final reference is then limited by 20.01/20.02 (speed) or
#     20.07/20.08 (frequency), so a commanded 100% is not necessarily 100% of
#     what the motor will do.
#   - ACT1 and ACT2 (registers 4 and 5) carry whatever parameters 92.02 and
#     92.03 point at ([FW] p. C-16, Figure C-3). Factory defaults ARE published
#     — [FW] p. B-7 gives 92.02 = 102 (1.02 SPEED) and 92.03 = 105 (1.05
#     TORQUE) on all five application macros, with 92.01 fixed at 302. They are
#     still DELIBERATELY ABSENT from [monitor] because a commissioned site can
#     repoint them and the profile would then read the wrong signal. The group
#     signals below are addressed directly through mapping (b) and need no
#     site commissioning.
#   - Group 1 scalings below are the FIELDBUS scalings from the "Scaling for
#     Fieldbus" column of [FW] p. A-1, not panel decimals. 1.02 SPEED is
#     percent of the motor's ABSOLUTE MAXIMUM speed and 1.05/1.06 are percent
#     of motor NOMINAL torque/power, all of which come from the group 99 motor
#     data — the same number means different rpm/Nm on a differently
#     commissioned drive.
#   - The auxiliary data set (REF3-5 / ACT3-5, registers 6-11) is a separate,
#     slower path with its own timeout parameter 30.21 AUX REF DS T-OUT
#     ([FW] p. C-15, Figure C-2). [FW] p. C-9 gives the update times: 12 ms for
#     the Main Reference and Main Actual Signal data sets, 100 ms for the
#     Auxiliary ones.
#     None of the points below live in the auxiliary set.

name = "ABB ACS600"
vendor = "ABB"
device_type = "vfd"
verified = false
probe_register = 3  # 40004 Status Word, readable whenever the link is alive

# Group 52 factory defaults, [FW] p. B-7 default settings table: 9600 bps, ODD.
# stopbits = 1 is INFERRED, not stated: [FW] p. A-12 lists the alternatives as
# NONE1STOPBIT / NONE2STOPBIT / ODD / EVEN, so only the NONE settings name a
# stop-bit count and ODD is taken to imply one. Neither p. A-12, nor Table 6-29
# on p. 6-97, nor Table C-3 on p. C-5 says so outright. Confirm on a bench.
[serial]
baudrate = 9600
parity = "O"
stopbits = 1

[monitor]
# Fixed data set registers, [FW] p. C-14. Bit names from Table C-5 / C-6.
# NOTE the family difference against the ACS 140/160/400: on the ACS 600 bit 4
# RAMP_OUT_ZERO IS USED, and bit 10 REMOTE_CMD IS USED and must be 1.
control_word = { address = 0, bits = { 0 = "ON_OFF1", 1 = "OFF2_N", 2 = "OFF3_N", 3 = "START", 4 = "RAMP_OUT_ZERO_N", 5 = "RAMP_HOLD_N", 6 = "RAMP_IN_ZERO_N", 7 = "RESET", 8 = "INCHING_1", 9 = "INCHING_2", 10 = "REMOTE_CMD", 11 = "EXT_CTRL_LOC" } }
reference_1 = { address = 1, signed = true, scale = 0.005, unit = "%" }  # 20000 = par 11.05
reference_2 = { address = 2, signed = true, scale = 0.005, unit = "%" }  # 20000 = par 11.08
status_word = { address = 3, bits = { 0 = "RDY_ON", 1 = "RDY_RUN", 2 = "RDY_REF", 3 = "TRIPPED", 4 = "OFF_2_STA", 5 = "OFF_3_STA", 6 = "SWC_ON_INHIB", 7 = "ALARM", 8 = "AT_SETPOINT", 9 = "REMOTE", 10 = "ABOVE_LIMIT", 11 = "EXT_CTRL_LOC", 12 = "EXT_RUN_ENABLE", 15 = "FB_COMM_ERR_CH0" } }

# Group 1 ACTUAL SIGNALS, register number and fieldbus scaling from
# [FW] p. A-1 Table A-1.
motor_speed = { address = 101, signed = true, scale = 0.005, unit = "%" }  # 1.02, 20000 = 100% of motor abs. max speed
output_frequency = { address = 102, signed = true, scale = 0.01, unit = "Hz" }  # 1.03, 100 = 1 Hz
motor_current = { address = 103, scale = 0.1, unit = "A" }                # 1.04, 10 = 1 A
motor_torque = { address = 104, signed = true, scale = 0.01, unit = "%" } # 1.05, 10000 = 100% of motor nom. torque
# signed is INFERRED here: [FW] p. A-1 prints 1.06 POWER as 0 = 0% / 1000 =
# 100% with no negative branch, unlike 1.05 TORQUE and 1.02 SPEED on the same
# page where the negative scaling IS printed. Regenerative power is genuinely
# negative, so the flag is kept as the safe reading — but it is not sourced.
output_power = { address = 105, signed = true, scale = 0.1, unit = "%" }  # 1.06, 1000 = 100% of motor nom. power
dc_voltage = { address = 106, unit = "V" }                               # 1.07, 1 = 1 V
mains_voltage = { address = 107, unit = "V" }                            # 1.08, 1 = 1 V
output_voltage = { address = 108, unit = "V" }                           # 1.09, 1 = 1 V
drive_temp = { address = 109, unit = "C" }                               # 1.10, 1 = 1 degC

# Group 3 fieldbus data words, [FW] p. A-3 Table A-3, contents in Appendix C:
# Table C-7 3.03 and Table C-8 3.04 on p. C-21, Tables C-9/C-10 3.05/3.06 on
# p. C-22, Table C-12 3.08 on p. C-23.
aux_status_word = { address = 302, bits = { 1 = "OUT OF WINDOW", 3 = "MAGNETIZED", 5 = "SYNC RDY", 6 = "1 START NOT DONE", 7 = "IDENTIF RUN DONE", 8 = "START INHIBITION", 9 = "LIMITING", 10 = "TORQ CONTROL", 11 = "ZERO SPEED", 12 = "INTERNAL SPEED FB", 13 = "M/F COMM ERR" } }  # 3.03, Table C-7
limit_word_1 = { address = 303, bits = { 0 = "TORQ MOTOR LIM", 1 = "SPD_TOR_MIN_LIM", 2 = "SPD_TOR_MAX_LIM", 3 = "TORQ_USER_CUR_LIM", 4 = "TORQ_INV_CUR_LIM", 5 = "TORQ_MIN_LIM", 6 = "TORQ_MAX_LIM", 7 = "TREF_TORQ_MIN_LIM", 8 = "TREF_TORQ_MAX_LIM", 9 = "FLUX_MIN_LIM", 10 = "FREQ_MIN_LIMIT", 11 = "FREQ_MAX_LIMIT", 12 = "DC_UNDERVOLT", 13 = "DC_OVERVOLT", 14 = "TORQUE LIMIT", 15 = "FREQ_LIMIT" } }  # 3.04, Table C-8
fault_word_2 = { address = 305, bits = { 0 = "SUPPLY PHASE", 1 = "NO MOT DATA", 2 = "DC UNDERVOLT", 4 = "RUN DISABLED", 5 = "ENCODER FLT", 6 = "I/O COMM", 7 = "AMBIENT TEMP", 8 = "EXTERNAL FLT", 9 = "OVER SWFREQ", 10 = "AI < MIN FUNC", 11 = "PPCC LINK", 12 = "COMM MODULE", 13 = "PANEL LOSS", 14 = "MOTOR STALL", 15 = "MOTOR PHASE" } }  # 3.06, Table C-10
system_fault_word = { address = 306 }  # 3.07, Table C-11 — read raw
alarm_word_1 = { address = 307, bits = { 0 = "START INHIBIT", 3 = "MOTOR TEMP", 4 = "ACx 600 TEMP", 5 = "ENCODER ERR", 6 = "T MEAS ALM", 12 = "COMM MODULE", 13 = "THERMISTOR", 14 = "EARTH FAULT" } }  # 3.08, Table C-12
alarm_word_2 = { address = 308 }       # 3.09 — read raw. The bit table is
                                       # [FW] p. C-24 Table C-13; not yet
                                       # transcribed, so no bits are invented.
int_fault_info = { address = 311 }     # 3.12 NINT Fault Info Word — read raw.
                                       # Table C-14 is [FW] p. C-25; not yet
                                       # transcribed, so no bits are invented.

# ABB Drives profile, Control Word at 40001 -> 0-based 0 ([FW] p. C-14, C-18).
# The state machine of [FW] p. C-20 Figure C-4 prints the transitions
# literally, and every one of them carries bit 10 set:
#   READY TO SWITCH ON        CW = xxxx x1xx xxxx x110
#   READY TO OPERATE          CW = xxxx x1xx xxxx x111
#   OPERATION ENABLED         CW = xxxx x1xx xxxx 1111 and SW bit 12 = 1
#   RFG: OUTPUT ENABLED       CW = xxxx x1xx xxx1 1111
#   RFG: ACCELERATOR ENABLED  CW = xxxx x1xx xx11 1111
#   OPERATING                 CW = xxxx x1xx x111 1111
# 0x0476 = bits 1,2,4,5,6,10 — every interlock released, OFF1 (bit 0) low, so
# the drive ramps down and sits in READY TO SWITCH ON. 0x047F adds bits 0 and
# 3, the full OPERATING word. NOTE: the manual does not print these as literal
# hex; they are the sum of the per-bit meanings on p. C-18 and the bit
# patterns on p. C-20. VERIFY ON A BENCH BEFORE TRUSTING THEM.
# Bit 10 REMOTE_CMD must be 1 or, with a non-zero Control Word or reference,
# the drive RETAINS THE LAST Control Word and reference instead of taking the
# new one ([FW] p. C-18).
[control]
command_register = 0
speed_register = 1
speed_scale = 0.005     # write %, 20000 raw = 100% of par 11.05 ([FW] p. C-13)
speed_signed = true     # direction IS the sign of the reference
speed_unit = "%"        # NOT Hz and NOT rpm — percent of 11.05
max_ref = 100.0
step_delay = 0.05
# OFF1: bit 0 low stops "within time defined by Par. 22.07 EM STOP RAMP TIME".
# Bits 1 and 2 stay HIGH so this is not the Emergency OFF coast-to-stop
# (bit 1 low) or the Emergency stop (bit 2 low), which [FW] p. C-18 carries an
# explicit Warning against.
stop = [0x0476]
run_fwd = [0x0476, 0x047F]
# Reset is Control Word BIT 7 on a 0->1 EDGE ([FW] p. C-18), not a separate
# register, so there is no reset_register. 0x04F6 raises bit 7 on top of the
# idle word while OFF1/OFF2/OFF3 stay released.
reset = [0x0476, 0x04F6, 0x0476]
# run_rev is deliberately absent. On the ABB Drives profile direction comes
# from the SIGN OF THE REFERENCE — [FW] p. C-13 prints six diagrams of
# resultant REF1/2 against fieldbus reference for 10.03 = FORWARD / REVERSE /
# REQUEST, with -20000 mapping to -[11.05]. A "reverse" control word would be
# byte-identical to forward. Reverse with a negative reference and
# 10.03 DIRECTION = REQUEST.

# 30.18 COMM FAULT FUNC DEFAULTS TO FAULT and 30.19 MAIN REF DS T-OUT to
# 1.00 s ([FW] p. B-5 default settings table), so out of the box this drive DOES trip
# on comm loss — the master must keep refreshing the Main Reference data set.
# The fault/warning is COMM MODULE, "Cyclical communication between ACS 600
# and fieldbus/ACS 600 Master is lost" ([FW] p. 7-3), also 3.06 FAULT WORD 2
# bit 12. 300 ms is inside the 1.00 s window; shorten it if the site has
# lowered 30.19.
[control.watchdog]
interval_ms = 300
fault = "COMM MODULE (30.18 COMM FAULT FUNC, timeout 30.19 MAIN REF DS T-OUT)"

# Status Word bit 2 RDY_REF = OPERATION ENABLED — the bit Figure C-4 sets on
# the run transition and clears on OFF1/OFF2/OFF3. Bit 8 AT_SETPOINT is
# stricter and reads false while accelerating.
# BLIND SPOT: the stop word 0x0476 has control-word bit 3 low, and Table C-5
# bit 3 = 0 is "Inhibit operation. Enter OPERATION INHIBITED" ([FW] p. C-18),
# which Table C-6 ([FW] p. C-19) and Figure C-4 ([FW] p. C-20) show clearing
# status bit 2 immediately. So this check reports STOPPED the moment the stop
# is accepted, while the motor is still ramping down over 22.07 EM STOP RAMP
# TIME. It still does its real job — catching a drive that ACKs a command and
# ignores it — but do not read it as "the shaft has stopped".
[running_check]
register = 3
bit = 2

# NO NUMERIC ACTIVE-FAULT REGISTER IS DOCUMENTED. Appendix A publishes a
# Modbus register for every actual signal, and there is no "last fault code"
# signal among them — the ACS 600 has no group 1 LAST FAULT the way the
# ACS 140/400 do, and the Fault History is a panel feature with no documented
# Modbus address. Faults are therefore read as the 3.05 / 3.06 BITFIELDS.
# This is a named gap, not a guess: no fault code table is filled in below,
# and none should be added from another family's manual or from memory.
#
# 3.05 FAULT WORD 1 -> 100*3 + 5 - 1 = 304, bits from [FW] p. C-22 Table C-9.
# Bits 10-15 are Reserved. Bit 7 SYSTEM_FAULT means the detail is in 3.07
# SYSTEM FAULT WORD — read the system_fault_word monitor point.
[faults]
register = 304
bitfield = true
bits = { 0 = "SHORT CIRC", 1 = "OVERCURRENT", 2 = "DC OVERVOLT", 3 = "ACx 600 TEMP", 4 = "EARTH FAULT", 5 = "THERMISTOR", 6 = "MOTOR TEMP", 7 = "SYSTEM_FAULT (see 3.07)", 8 = "UNDERLOAD", 9 = "OVERFREQ" }

# 99.06 MOTOR NOM CURRENT, range 1/6 * I2hd to 2 * I2hd of the ACS 600,
# fieldbus scaling "1 = 0.1 A" ([FW] p. A-4). Address 100*99 + 6 - 1 = 9905.
# THIS IS MOTOR NAMEPLATE DATA AND IT DOES NOT ESTABLISH CONVERTER FRAME
# IDENTITY. The legal window is 1/6 * I2hd .. 2 * I2hd in DTC mode and
# 0 * I2hd .. 2 * I2hd in SCALAR mode ([FW] p. 3-3) — a factor of twelve in
# DTC and unbounded-below in SCALAR — so the same motor reads the same 99.06
# on two converters of different frame size and the guard passes. It also
# defaults to 0.0 A on every application macro ([FW] p. B-1), which is exactly
# what a factory-fresh replacement drive reads. This register catches a
# differently-commissioned MOTOR; it is not a frame-size check. It is kept
# because it is the only rating-adjacent parameter the ACS 600 publishes a
# Modbus number for (Appendix A has actual-signal tables for groups 1, 2 and 3
# only, and group 33 INFORMATION carries software version and test date).
[rating]
register = 9905
words = 1
scale = 0.1
unit = "A"
label = "99.06 MOTOR NOM CURRENT"

# NO [parameters] BLOCK, DELIBERATELY, even though Appendix A publishes a
# Modbus register number for essentially every parameter. Two reasons out of
# the manual itself:
#   1. 16.07 PARAM SAVE exists precisely because fieldbus parameter writes are
#      not stored automatically. A restore that swept a range would leave the
#      drive looking correct until the next power cycle — the worst failure
#      mode for a drive-replacement clone — and this profile format has no
#      place for the trailing 16.07 = SAVE write.
#   2. The Appendix A register column is sparse: groups 1, 2 and 3 are
#      read-only actual signals living inside the same address space (Tables
#      A-1, A-2 and A-3 — there is no group 4 actual-signal table in this
#      program), several parameters print no Modbus number at all (group 45
#      FUNCTION SELECTION is printed "Not accessible from Profibus" with a
#      blank register column, [FW] p. A-11), and index gaps within a group
#      are not addressable. A blind range sweep would write into read-only
#      addresses and stall on an exception. Enumerating the writable indexes
#      means transcribing Appendix A and bench-checking each; that has not
#      been done.

[connection]
summary = "The ACS600 Standard Modbus Link is on NIOC-01 modular jacks X28/X29; a controller may connect directly, through an NBCI isolation interface, or from RS-232 through an NPCU-01."
warnings = ["X28/X29 are galvanically unisolated.","Pin 6 carries +24 V and pins 1/2 are internal TRANS/FAULT signals; a direct Modbus master must use only pins 3, 4 and 5.","These six-position modular jacks are not Ethernet ports."]

[[connection.methods]]
id = "nio_direct_rs485"
title = "Direct NIOC-01 Standard Modbus Link"
transport = "serial"
hardware = "built_in"
port = "NIOC-01 modular jack X28 or X29"
connector = "Six-position modular jack: pin 3 B-, pin 4 A+, pin 5 GND; pin 6 is +24 V and must remain disconnected from the master"
adapter = "Isolated USB-to-RS-485 adapter"
cable = "Three-conductor RS-485 cable terminated to modular-jack pins 3/4/5; ABB grey straight-through cable for drive chaining"
parts = ["Isolated USB-to-RS-485 adapter","Documented six-position plug or breakout","Shielded twisted pair plus signal common"]
steps = ["Lock out the drive and locate X28/X29 on NIOC-01.","Terminate only pins 3 B-, 4 A+ and 5 GND to the isolated adapter; leave pins 1, 2 and 6 open.","Set NIOC switch SW1 for the physical bus position; ABB's grey drive-to-drive cable is straight through.","Restore power with the motor inhibited and verify a read."]
setup = ["Set 98.02 = STD MODBUS and 98.07 = ABB DRIVES.","Set 52.01 station, 52.02 baud and 52.03 parity.","Set command/reference selectors to COMM.MODULE/COMM.REF and configure 30.18/30.19."]
warnings = ["Direct connection is galvanically unisolated.","Never connect adapter power to pin 6 (+24 V).","X28 pin 2 is GND while X29 pin 2 is FAULT; neither pin is part of the external three-wire Modbus connection."]
source = "ABB hardware manual 3AFY61201394 Rev D, pp. A-13 through A-14; firmware 3AFY61201441 R0725, pp. C-1 and C-5 through C-8."

[[connection.methods.wiring]]
adapter = "D- / negative"
device = "X28/X29 pin 3 — B-"
signal = "RS-485 negative"

[[connection.methods.wiring]]
adapter = "D+ / positive"
device = "X28/X29 pin 4 — A+"
signal = "RS-485 positive"

[[connection.methods.wiring]]
adapter = "COM / signal common"
device = "X28/X29 pin 5 — GND"
signal = "Signal reference"

[[connection.methods]]
id = "nbci_isolated_rs485"
title = "NBCI isolated/multidrop interface"
transport = "serial"
hardware = "option"
port = "NIOC-01 X28/X29 through ABB NBCI Panel Bus Connection Interface"
connector = "ABB preterminated modular link to NBCI; field side per the NBCI manual"
adapter = "Isolated USB-to-RS-485 adapter or RS-485 controller"
cable = "ABB preterminated NIOC-to-NBCI lead plus shielded RS-485 trunk"
parts = ["ABB NBCI interface","ABB preterminated modular lead","RS-485 master","Shielded twisted pair"]
steps = ["Lock out the drive and install/connect NBCI according to its own installation guide.","Use the ABB preterminated lead between X28/X29 and NBCI.","Wire the controller-side trunk strictly to the NBCI terminal markings.","Restore power with the motor inhibited and verify a read."]
setup = ["Use the same Standard Modbus Link settings: 98.02 = STD MODBUS, 98.07 = ABB DRIVES and group 52.","Select fieldbus command/reference sources and communication-loss handling."]
warnings = ["The ACS600 firmware manual names NBCI but does not reproduce its terminal pinout; the NBCI manual is required at the panel."]
source = "ABB ACS600 firmware 3AFY61201441 R0725, pp. C-1 and C-5."

[[connection.methods.wiring]]
adapter = "ABB preterminated NIOC-to-NBCI lead"
device = "NIOC-01 X28/X29 to NBCI"
signal = "Complete isolated link; connector pins not reproduced in firmware manual"

[[connection.methods]]
id = "npcu_01_rs232"
title = "NPCU-01 RS-232/RS-485 conversion"
transport = "serial"
hardware = "option"
port = "NIOC-01 X28/X29 through ABB NPCU-01 PC Connection Unit"
connector = "ABB preterminated modular link to NPCU-01; PC-side RS-232"
adapter = "PC RS-232 port or isolated USB-to-RS-232 adapter"
cable = "ABB preterminated NIOC-to-NPCU lead plus RS-232 cable"
parts = ["ABB NPCU-01","ABB preterminated modular lead","RS-232 port/adapter"]
steps = ["Lock out the drive and connect NPCU-01 to X28/X29 with the ABB preterminated lead.","Connect the PC serial port to NPCU-01 as specified in the NPCU manual.","Restore power with the motor inhibited and verify a read."]
setup = ["Set 98.02 = STD MODBUS, 98.07 = ABB DRIVES and match group 52.","Select fieldbus command/reference sources and communication-loss handling."]
warnings = ["DriveWindow Light uses the NAMC panel connector, not this Standard Modbus Link path.","The firmware manual does not reproduce NPCU cable pins; do not improvise them."]
source = "ABB ACS600 firmware 3AFY61201441 R0725, pp. C-1 and C-5."

[[connection.methods.wiring]]
adapter = "ABB preterminated NIOC-to-NPCU link"
device = "NIOC-01 X28/X29 through NPCU-01"
signal = "Complete RS-232-to-RS-485 conversion path; pin assignment not reproduced"