4 details of command communication, Power supply bl-u1, Communication procedure – KEYENCE BL-180 User Manual
Page 103
Power Supply BL-U1
97
5.4
Details of Command Communication
All RS-232C and RS-422A serial communication commands can be used.
Communication
Procedure
1. Send a command from the host computer to the BL series you wish to oper-
ate.
2. Data, including the same command, loops back to the host computer.
3. The specified BL series receives the command and performs the required
operation.
4. The BL series sends back the following data in response to the command.
Response to the direct control command or the setting change command: OK
Response to the setting confirmation command: Current settings
If an error occurs with the specified command, the BL series sends back the
following response.
** indicates an error code (see p. 70).
If incorrect characters are specified for the data communication commands
(P, C), the BL series sends back ERR**.
[STX]
mmm
nn
Command
cc
[ETX]
[STX]
mmm
nn
Command
cc
[ETX]
[STX]
mmm
nn
Response
cc
[ETX]
[STX]
mmm
nn
ERR**
cc
[ETX]
S
T
X
E
T
X
010
02
LON
7E
S
T
X
E
T
X
010
02
LON
7E
S
T
X
E
T
X
009
02
OK
3F
ID•••1
ID•••4
ID•••3
ID•••2
3
Timing input
turns ON.
1
2
4