Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 158)

158 Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
Appendix A PCCC Commands Supported by the Data Highway Plus Module
ID Host and Status
This command lets you check the location and status of the controlling
intelligent device, such as a PLC-5, that is connected to the DHRIO network.
CMD = 06h, FNC = 03
The definition of the data returned is shown in the following table.
Byte Description
0 PLC Mode = 00
1 Interface Type = 0xEE
2 Interface Type Extension = 0x3D
3 Processor Type Extension = 0x76
4 - 5 Reserved
6 Pointer to Diagnostic Counters (low byte) = 00
7 Pointer to Diagnostic Counters (high byte) = 00
8 Major and Minor Revision
Bits 0 - 3 1 = Minor Revision 1
2 = Minor Revision 2
and so forth
Bits 4 - 7 1 = Major Revision 1
2 = Major Revision 2
and so forth
9 Options - Port A
Bits 0 - 1 Port A Type, where 00 = illegal
01 = remote I/O
10 = DH+
11 = illegal
Bits 2 - 3 Unused
Bits 4 - 5 Port A Baud Rate, where 00 = 57.6 Kb
01 = 115 Kb
10 = 230 Kb
11 = illegal
Bits 6 - 7 Unused