Omron CVM1-CLK21 CQM1H-series PLCs, Data Link Start Bit AR 07 See, Word Bits Name Contents

Memory Areas Appendix B

Parameters for Automatically Setting Data Links: DM 2000 + 100 ⋅ (Unit No.) + 1 to + 9 (See page 147.)

+1

+2

+3

+4

+5

+6

+7

+8

+9

15							8	7							0
Area 1 data link start word (BCD)
Area 1 type
Number of send words per node of area 1 (BCD)
Rightmost 4 digits of data link start word of area 2 (BCD)
								Leftmost digit of data link start word
Area 2 type
								of area 2 (BCD)
Number of send words per node of area 2 (BCD)
First data link status word (BCD)
15	14	13	12	11	10	9	8	7	6	5	4	3	2	1	0
16	15	14	13	12	11	10	9	8	7	6	5	4	3	2	1
32	31	30	29	28	27	26	25	24	23	22	21	20	19	18	17

BCD: Set the value as binary-coded decimal.

Nodes to participate in the data links

The numbers indicate node numbers. The value assigned indicates whether the node is to participate in the data links.

Participate: 1

Not participate: 0

CQM1H-series PLCs

AR Area

Word	Bits	Name	Contents
AR 00	11	Communications Unit Error Flag	Turns ON when an error occurs in a Communications Unit.
AR 01	11	Communications Unit Restart Bit	Turn ON this bit to restart the Communications Unit.
AR 02	00 to 07	Response code	Contains the completion code for network instructions
			(SEND(90), RECV(98), or CMND(––)).
			(See page 191.)
	08	Network Instruction Error Flag	0: Normal end to SEND(90), RECV(98), or CMND(––).
			1: Abnormal end
			(See page 190.)
	09	Network Instruction Enable Flag	0: SEND(90), RECV(98), or CMND(––) execution not possi-
			ble (already executing)
			1: Execution possible (not executing)
			(See page 190.)
	15	Communications Unit Connected	Turns ON when a Communications Unit is mounted to the
		Flag	PLC.
AR 03	00 to 15	Communications Unit Servicing	Indicates the servicing time for the last cycle in 0.1-ms units
		Time	(4-digit BCD.)

Data Link Start Bit: AR 07 (See page 113.)

15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

Data link Start Bit (AR0700)

Start: Changed from OFF to ON or set to ON when power is turned on

Stop: Changed from ON to OFF

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