Operating Instructions
Safety Relay with IO-Link ESM-CB
28
(Translation of the original operating instructions) 2522722-01-05/19
14.5. Communication with BR devices
Note
: The data is in Big Endian format.
Transmission
Reply
Hex
Dec
Command
Number of bytes
Number of bytes
2
2
Send order no. and serial no.
3 bytes for order no.
3 bytes for serial no.
3
3
Send device version
1 byte for letter V
4 bytes for version number, e.g.
1.0.1.0 (the periods are not
transmitted)
5
5
Send number of safety switches
in the series connection
2 bytes
12
18
Send current error code
1 byte for error code.
13
19
Send saved error code (history)
1 byte for error code. This error
is no longer present.
14
20
Send size of log file
1 byte for length of the current
log file
15
21
Send entry from log file with
index. The required index must
be sent in the second byte.
1 byte for error code.
16
22
Send current actuator code
With unicode evaluation:
5 bytes for code of the currently
read actuator.
With multicode evaluation:
replies with 5x 0xFF
17
23
Send taught-in actuator code
With unicode evaluation:
5 bytes for code of the taught-in
actuator in the switch.
With multicode evaluation:
replies with 5x 0xFF
18
24
Send disabled actuator code
With unicode evaluation:
5 bytes for code of the currently
disabled actuator.
With multicode evaluation:
replies with 5x 0xFF
19
25
Send applied voltage
2 bytes for voltage value in mV
1A
26
Send current temperature
1 byte for temperature value
in °C
1B
27
Send number of switching
cycles
3 bytes for counter value
1D
29
Reset device
1 byte for acknowledgment,
value hex 1D
1E
30
Factory-reset device
1 byte for acknowledgment,
value hex 1E
