Allen-Bradley MicroLogix 1200 Reference Manual page 310

21-10 Communications Instructions
Publication 1762-RM001C-EN-P
"This Controller" Parameters
Communication Command
The controller supports six different types of communications commands.
If the target device supports any of these command types, the controller
should be capable of exchanging data with the device. Supported
commands include:
Table 21.2 Communication Command Types
Communication Description
Command
500CPU Read The target device is compatible with and supports the
SLC 500 command set (all MicroLogix controllers).
500CPU Write The target device is compatible with and supports the
SLC 500 command set (all MicroLogix controllers).
(1) The target device is compatible with and supports the
485CIF Read
485CIF (PLC2).
(1) The target device is compatible with and supports the
485CIF Write
485CIF (PLC2).
PLC5 Read The target device is compatible with and supports the
PLC5 command set.
PLC5 Write The target device is compatible with and supports the
PLC5 command set.
(1) See Important note below.
The Common Interface File (CIF) in the MicroLogix 1200,
IMPORTANT
1500, and SLC 500 processors is File 9. The CIF in the
MicroLogix 1000 controller is Integer File 7.
Table 21.3 Communication Commands
Command Function
0x01
0x08
0x0F 0x00
0x01
0x67
0x68
0xA1
0xA2
0xA3
0xA7
0xA9
0xAA
0xAB
0xAF
Description
unprotected read
unprotected write
word range write
word range read
PLC typed write
PLC typed read
logical read with 2 address fields
logical read with 3 address fields
scattered read
file read
logical write with 2 address fields
logical write with 3 address fields
logical write with 4 address fields
file write
Used For
reading data
sending data
reading data
sending data
reading data
sending data