Rockwell Automation 1771-DMC_DMC1_DMC4_DXPS Control Coprocessor User Manual - Manual (Page 175)

API Library of Routines
Appendix B
DTL_CLOCK
B-44
BASIC Example
The BASIC function code is 18.
procedure COPRO
DIM status : INTEGER
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rem * DTL_CLOCK - synchronize our clock with the PLC-5
RUN AB_BAS (18,status)
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References
DTL_INIT();