Rockwell Automation D64046.5.1 U MNL WIN DDMC - Manual (Page 146)

Reference Information
Appendix A
A-2
Table A.A
Execution Times for an SDS Instruction in the PLC-5
Number of I/O (Step 0) Initialization
0.350 ms base +
Typical Step Transition (No MSG) Step Transition (with MSG)
8 0.050 ms/step 0.433 ms 0.633 ms 0.720 ms
16 0.050 ms/step 0.433 ms 0.633 ms 0.720 ms
t 32 0.050 ms/step 0.433 ms 0.633 ms 0.720 ms
Table A.B
Execution Times for an SDS Instruction in the PLC-5/250
Number of I/O (Step 0) Initialization
0.200 ms base +
Typical Step Transition (No MSG) Step Transition (with MSG)
8 0.013 ms/step 0.200 ms 0.245 ms 0.270 ms
16 0.013 ms/step 0.200 ms 0.245 ms 0.270 ms
32 0.013 ms/step 0.200 ms 0.245 ms 0.270 ms
Control File Size Requirements
Tables A.C and A.D list the control file size requirements in the PLC-5
processor and the PLC-5/250 for an SDS instruction with 8, 16, and 32
I/O.
Table A.C
Control File Size Requirements for an SDS Instruction in the PLC-5
Number of I/O Number of Words Needed for Control File
8 68
16 68
32 68
Table A.D
Control File Size Requirements for an SDS Instruction in the PLC-5/250
Number of I/O Number of Words Needed for Control File
8 58
16 58
32 58