Omron C200HW-CLK21, CVM1-CLK21, CS1W-RPT01, CJ1W-CLK21-V1, CQM1H-CLK21, CS1W-CLK21-V1 208

Commands and Responses for Controller Link Units Section 6-5

Status flag (response): The overall data link status is returned in one byte of data, as shown in the following diagram.

Bit 7	6	5	4	3	2	1	0
				0	0
							1: Data link setting error
							1: No data link table
							Allocation for automatic setting
							00: Equality layout
							01: 1:N allocation, common type
							10: 1:N allocation, 1 to 1 type
							11: 1:N allocation, delivery type
							Data link mode during operation
Data link operational status							0: Manual setting
0: Not active							1: Automatic setting
1: Active

Data link mode (response): The data link mode during operation is returned in one byte of data, as follows:

01 (Hex): Automatic (Equality Layout)

81 (Hex): Automatic (1:N allocation)

03 (Hex): Manual

Refresh cycle time present value, refresh cycle time maximum value (response): The present value and the maximum value of the cycle time for refreshing the data link area are both returned in units of 1 ms, in hexadeci- mal, within a range of 0000 to 00FF (decimal: 0 to 255).

Status (response): The data link status of each mode is returned as shown in the following diagram. It is the same as the data link status in the PLC. (Refer to page 156.)

								Data link status for each node
Bit	7	6	5	4	3	2	1	0
Byte 1			Node #1						7	6	5	4	3	2 1 0
									–
Byte 2			Node #2													PLC status
Byte 3
			Node #3
																0: Inactive (user program not running)
																1: Active (user program running)
Byte 62			Node #62
															PLC's CPU Unit error

0:Normal

1:Error

Communications error (data link reception)

0:Normal

1:Error

Data link participation

0:Not in data link or data link inactive

1:In data link

Offset error Error: Offset exceeds number of send words.

0:Normal

1:Error

Insufficient (short) receive area Insufficient: Receive area is smaller than send area.

0: Sufficient	Excess data is truncated; other data is received.
1: Insufficient
Remaining receive area	Remaining: Receive area is larger than send area.
0: Not remaining	Data is received and remaining words are cleared.
1: Remaining

Note 1. If the type is set to 0000 Hex (or is omitted), only the 32 bytes for nodes 1 to 32 will be returned.

2.The data link status is not refreshed while the data links are inactive.

3.Nodes which are not active in the network or participating in the data links will generate communications errors.

208