User`s manual

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[4] Command (response)
This section describes the commands (and responses) that can be used for communication (in a computer
link) between the JW300 (control module) and a host computer.
(1) Command type
There are 39 commands. Mostly, they are classified as "read commands," "write commands," or
"control commands."
Command
Read out command
Write command
Control command
Control command Write command Read-out command
Monitor relay MRL 7-42
Monitor multiple relays  MRS 43
Current value monitor of TMR/CNT/MD MTC 44
Relay, register, TMR/CNT/MD current value monitor  MRG 46
Monitor the current values of any required 
relays, registers, TMR, CNT, or MD

MGS 47
Read out file register RFL 49
Read out file address RFLF 50
Read out parameter of RPSR 51
special I/O module RPS 52
Read out parameter of option module RPO 53
Read out system memory RSM 54
Read out date MDY 56
Read out time MTM 57
Set/reset relay SRR 7-42
Set/reset multiple relay SRS 43
Set/reset relay, register TMR/CNT/MD SRT 44
Write in relay, register, TMR/CNT/MD WRG 46
Write to any required relays, registers,
TMR, CNT, or MD

WGS 47
Write the same data in relay, register,
TMR/CNT/MD
FRG 48
Write in file register  WFL 49
Write in file address WFLF 50
Write in parameter of special I/O module
 WPSR 51
 WPS 52
Write in parameter of option module WPO 53
Write in system memory WSM 54
Change setting value of TMR/CNT CTC 55
Set date SDY 56
Set time STM 57
Set time revision ACL 58
Stop operation of PLC HLT 7-59
Restart operation of PLC RUN 60
Monitor operation conditions MPC 59
Read memory capacity VLM 61
Read out write mode status SWE 41
Set write mode EWR 41
Turn back the message TST 59
Release secret/password registration PAS 60
Set secret function SES 60
Check secret function SEI 61
Function
Command
name
Write
mode
JW30H *
* : The JW30H has the same function.
: The JW30H does not have this function.
Contents
Messages that a personal computer transmits to the JW300
when it reads out data from the JW300.
Messages that a personal computer transmits to the JW300
when it reads out data from the JW300.
Messages that a personal computer transmits to the JW300
when it reads out data from the JW300.