Rockwell Automation 1785-Lxxx Enhanced and Ethernet PLC-5 Programmable Controllers - Manual (Page 286)

Publication 1785-UM012D-EN-P - July 2005
B-12 Processor Status File
S:79-S:127
S:68 Installed memory card type:
0 - No memory card installed
1 - 1785-ME16
2 - 1785-ME32
3 - 1785-ME64
4 - 1785-ME100
5 - 1785-CHBM
6 - 1785-RC
7-15 - Reserved
When the 1785-RC module is installed, the eight least-significant
bits indicate the memory card’s status:
Bit 3 is set when the memory card is installed
Bit 2 is set when contact is detected closed
Bit 1 is set when the relay is driven open
Bit 0 is set when 120V ac is present on the memory card
When any other memory card is installed, the bits are undefined.
S:77 Communication time slice for communication housekeeping
functions (in ms)
S:78 MCP I/O update disable bits
Bit 0 for MCP A
Bit 1 for MCP B
etc.
This Word Stores
This Word Stores
S:79 MCP inhibit bits
Bit 0 for MCP A
Bit 1 for MCP B
etc.
S:80-S:127 MCP file number
MCP scan time (in ms)
MCP max scan time (in ms)
The above sequence applies to each MCP; therefore, each MCP
has
3 status words.
For example,word 80: file number for MCP A
word 81: scan time for MCP A
word 82: maximum scan time for MCP A
word 83: file number for MCP B
word 84: scan time for MCP B
etc.