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Commands and Responses for Controller Link Units
Section 6-5
6-5-7
DATA LINK STATUS READ
Reads the data link operational status.
Command Block
Response Block
Parameters
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
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 PC. (Refer
to page 103.)
7
6
5
4
3
2
1
0
Bit
Reserved for
system use.
Byte 1
Byte 2
Byte 3
Byte 32
Byte 33
Byte 62
Number of error occurrences for node #1
Number of error occurrences for node #2
Number of error occurrences for node #3
Number of error occurrences for node #32
Command
code
03
06
Response
code
Command
code
Status flag
Data link mode
Refresh
cycle time
present
value
Refresh
cycle time
maximum
value
Status
32 bytes
06
03
Bit
Data link operational status
0: Not active
1: Active
1: Data link setting error
1: No data link table
Data link mode during operation
0: Manual setting
1: Automatic setting
7
6
5
4
3
2
1
0
0 0 0 0
Содержание CVM1-CLK21
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