SMC Networks 1560 Ladder Logic Programming, RefOffset Description, PLC Ref PLC Name Description

Appendix C — Peer Cop Example

Contents

The Global Input Data from Node 6, starting with offset 1 for a length of

9 words, will be assigned to PLC registers 40200 through 40209. These are mapped as follows:

PLC	RefOffset	Description
40200	Offset 1	Drive Feedback
40201	Offset 2	Datalink Input Word A1 (Configurable in Drive)
40202	Offset 3	Datalink Input Word A2 (Configurable in Drive)
40203	Offset 4	Datalink Input Word B1 (Configurable in Drive)
40204	Offset 5	Datalink Input Word B2 (Configurable in Drive)
40205	Offset 6	Datalink Input Word C1 (Configurable in Drive)
40206	Offset 7	Datalink Input Word C2 (Configurable in Drive)
40207	Offset 8	Datalink Input Word D1 (Configurable in Drive)
40208	Offset 9	Datalink Input Word D2 (Configurable in Drive)

Ladder Logic Programming

Finally, a small amount of programming is added to simplify drive control. A group of 16 coils, 00001-00016, are block moved into the word that is mapped to the Drive Control word, 40100.

In our example, coils 00001-00016 are assigned the specific name and function as shown below:

PLC Ref	PLC Name		Description
000001	MOP DECREMENT	1	= Decrement, 0=Not
000002	REF SEL1	Binary Reference Source Selection 20
000003	REF SEL2	Binary Reference Source Selection 21
000004	REF SEL3	Binary Reference Source Selection 22
000005	DEC SEL1	Decellaration Rate Selection
000006	DEC SEL2	Decellaration Rate Selection
000007	ACC SEL1	Accelaration Rate Selection
000008	ACC SEL2	Accelaration Rate Selection
000009	MOP INCREMENT	1	= Increment, 0=NOT
000010	LOCAL LOCKOUT	1	= Local Lockout, 0 = Not Local
000011	DIR SEL1	Direction Selection
000012	DIR SEL2	Direction Selection
000013	DRV RESET	1	= Clear Faults, 0 = Not Clear Faults
000014	DRV JOG	1	= Jog, 0 = Not Jog
000015	DRV START	1	= Start, 0 = Not Start
000016	DRV STOP	1	= Stop, 0 = Not Stop

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