Rockwell Automation 1785 PLC-5 User Manual download pdf (Page 101)

1785-UM022C-EN-P - February 2008

Appendix B

Processor Status File

S:0 - S:2 Processor status data is stored in data-file 2.

This word of

the status file:

Stores:

S:0 Arithmetic flags

• bit 0 = carry

• bit 1 = overflow

• bit 2 = zero

• bit 3 = sign

S:1 Processor status and flags

S:1/00 RAM checksum is invalid at power-up

S:1/01 Processor in run mode

S:1/02 Processor in test mode

S:1/03 Processor in program mode

S:1/04 Processor uploading to memory module

S:1/05 Processor in download mode

S:1/06 Processor has test edits enabled

S:1/07 Mode select switch in REMOTE position

S:1/08 Forces enabled

S:1/09 Forces present

S:1/10 Processor successfully uploaded to memory module

S:1/11 Performing online programming

S:1/12 Not defined

S:1/13 User program checksum calculated

S:1/14 Last scan of ladder or SFC step

S:1/15 Processor running first program scan or the first scan of the next

step in an SFC

S:2 Switch setting information

S:2/00

through

S:2/05

Channel 1A DH+ station number

S:2/06 Channel 1A DH+ baud rate

0 57.6 kbps

1 230.4 kbps

1 2 ... 96 97 98 99 100 101 102 103 104 105 106 ... 147 148

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Rockwell Automation 1785 PLC-5 User Manual Page 101