CV500BC051 Omron, CV500BC051 Datasheet - Page 236

• Manufacturer Part Number: CV500BC051
• Description: Programmable Logic Controller
• Manufacturer: Omron

Specifications of CV500BC051

• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Commands and Responses for Controller Link Units
Byte 1
Byte 2
Byte 3
Byte 62
Bit
7
6
Node #62
5
Node #1
Node #2
Node #3
4
3
2
1
Note
0
Data link status for each node
7
–
Status flag (response): The overall data link status is returned in one byte of
data, as shown in the following diagram.
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 158.)
1. If the type is set to 0000 Hex (or is omitted), only the 32 bytes for nodes 1
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
Data link operational status
6
0: Not active
1: Active
to 32 will be returned.
will generate communications errors.
5
Remaining receive area
0: Not remaining
1: Remaining
4
Insufficient (short) receive area
0: Sufficient
1: Insufficient
Offset error
0: Normal
1: Error
3
Data link participation
0: Not in data link or data link inactive
1: In data link
2
Bit
1
Communications error (data link reception)
0: Normal
1: Error
7
PLC's CPU Unit error
0: Normal
1: Error
0
6
PLC status
0: Inactive (user program not running)
1: Active (user program running)
5
4
Error: Offset exceeds number of send words.
0 0
3
2
Remaining: Receive area is larger than send area.
Data is received and remaining words are cleared.
1
0
Insufficient: Receive area is smaller than send area.
Excess data is truncated; other data is received.
1: Data link setting error
1: No data link table
Allocation for automatic setting
Data link mode during operation
00: Equality layout
01: 1:N allocation, common type
10: 1:N allocation, 1 to 1 type
11: 1:N allocation, delivery type
0: Manual setting
1: Automatic setting
Section 6-5
211