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Reading the Optocoupler Output Port
This command is used to read the current state of the optocoupler output.
Optocoupler enabled = 1, optocoupler disabled = 0
Example: reading the optocoupler output state
An 8-byte block is transmitted and an 8-byte block is received holding the current optocou-
pler output state
Output channel
Screw terminal
Switching state
Byte
Transmit
0
08
1
00
2
00
01 (→ 4Byte)
3
4
01
5
00
6
00
7
00
Writing the Optocoupler Output Port
This command is used to disable or to enable the output optocoupler
Optocoupler enabled = 1, optocoupler disabled = 0
Example: output the state (0x02
DOUT1 enabled)
An 8-byte block is transmitted and a 4-byte block is received as confirmation
Output channel
Screw terminal
Switching state
Byte
Transmit
0
1
2
01 (→ 4Byte)
3
4
5
6
7
EXDUL-581E / EXDUL-581S © 2019 by Messcomp Datentechnik GmbH
DOUT1 DOUT0
22
1
Representing
Command code 1st Byte
Command code 2nd Byte
Command code 3rd Byte
Length byte
r/w Byte (1→ read)
reserved
reserved
reserved
) at the optocoupler outputs (= DOUT0 disabled and
hex
DOUT1 DOUT0
22
1
Receive
08
08
00
00
00
00
00
00
02
00
00
wasco
21
0
Receive
Representing
08
Command code 1st Byte
00
Command code 2nd Byte
00
Command code 3rd Byte
01 (→ 4Byte)
Length byte
01
Read function
02
optocoupler output state
00
reserved
00
reserved
21
0
Representing
Command code 1st Byte
Command code 2nd Byte
Command code 3rd Byte
Length byte
r/w Byte (0→ write)
Optocoupler output state
reserved
reserved
®
EV03
70
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