Micro-Comm S4500 - Protocol Support

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Allen-Bradley DF1 and Modbus Protocol Support
All RTU32 PLCs can use Allen-Bradley DF1 or Modbus RTU protocols. The information below describes what
protocol options are supported and how the data is mapped to physical I/O or memory locations in the PLC:
DF1 SLC-500 File Modbus 4x Reg Modbus I/O PLC I/O and Memory Registers
N9:0 r 4x0001 r 10001-10016 r Discrete Inputs DI1-DI16
N9:1 r 4x0002 r 10017-10032 r EDI #1 Discrete Inputs DI17-DI32
N9:2 r 4x0003 r 10033-10048 r EDI #2 Discrete Inputs DI33-DI48
N9:3 r 4x0004 r 10049-10064 r EDI #3 Discrete Inputs DI49-DI64
N9:4 r 4x0005 r 10065-10080 r EDI #4 Discrete Inputs DI65-DI80
N9:5 r 4x0006 r 10081-10096 r DI81-DI96
N9:6 r 4x0007 r 10097-10112 r DI97-DI112
N9:7 r 4x0008 r 10113-10128 r DI113-DI128
N9
:8 r 4x0009 r 10129-10144 r DI129-DI144
N9:9 r 4x0010 r 10145-10160 r DI145-DI160
N10:0 r/w 4x0011 r/w 00001-00016 r/w Discrete Outputs DO1-DO16
N10:1 r/w 4x0012 r/w 00017-00032 r/w EDO #1 Discrete Outputs DO17-DO32
N10:2 r/w 4x0013 r/w 00033-00048 r/w EDO #2 Discrete Outputs DO33-DO48
N10:3 r/w 4x0014 r/w 00049-00064 r/w EDO #3 Discrete Outputs DO49-DO64
N10:4 r/w 4x0015 r/w 00065-00080 r/w EDO #4 Discrete Outputs DO65-DO80
N10:5 r/w 4x0016 r/w 00081-00096 r/w DO81-DO96
N10
:6 r/w 4x0017 r/w 00097-00112 r/w DO97-DO112
N10:7 r/w 4x0018 r/w 00113-00128 r/w DO113-DO128
N10:8 r/w 4x0019 r/w 00129-00144 r/w DO129-DO144
N10:9 r/w 4x0020 r/w 00145-00160 r/w DO145-DO160
N11:0 – N11:4 r/w DO81-DO160
N12:0 - N12:63 r/w 4x0021-4x0084 r/w 30001-30064 r AO1-AO64
N13:0 - N13:63 r 4x0085-4x0148 r 30065-30128 r AI1-AI64
N14:0 - N14:31 r/w 4x0149-4x0180 r/w 30129-30160 r PI1-PI32
N15:0 - N15:63 r/w 4x0601-4x0664 r/w Stop/Starts 1-32 STOP1,START1,STOP
2,START2 etc.
N16:0 - N16:191 r/w 4x0201-4x0424 r/w X Variables X1-X224 (16 bit words)
N17:0 - N17:63 r 4x0701-4x0764 r Timer Variables TSEC1-TSEC64 (16 bit @ 1sec/bit)
N19:0 - N19:15 r/w 4x1201-4x1216 r/w ON/OFF Timer Settings (ON1,OFF1,ON2,OFF2 etc.)
N20:0 - N20:99 r/w 4x3000-4x3099 r/w User Memory Locations 0-99 (16 bit words)
N21:0 - N21:99 r/w 4x3100-4x3199 r/w User Memory Locations 100-199
N22:0 - N22:99 r/w 4x3200-4x3299 r/w User Memory Locations 200-2
99
… … …
N109:0 - N109:99 r/w 4x11900-4x11999 r/w User Memory Locations 8900-8999
Modbus Specications
Protocol Mode: Modbus RTU Master/Slave and Modbus/TCP
Error Checking: CRC-16
Function Codes Supported: 1-Read Coil Status, 2-Read Input Status, 3-Read Holding Registers,
4-Read Input Registers, 5/15-Force Single/Multiple Coils,
6/16-Preset Single/Multiple Registers
DF1 Specications
Data Link Layer Protocol: DF1 Half-Duplex Master/Slave, DF1 Full-Duplex or DF1 Radio Modem
Error Checking: CRC-16
Message Packet Formats: SLC-500 Protected Typed Logical Reads/Writes
PLC-5 Word Range Read/Write
PLC-2 Physical Read/Write
Basic Command Set - Unprotected Read/Write