MODBUS Interface
Verbatim Owner's Manual F-11
Response remote channel <ZZ> is <N> or
remote channel <ZZ> communications error <code>
4 0 ZZ * N
Function write value N to PLC address associated with channel ZZ
Response remote channel <ZZ> set to <N> or
remote channel <ZZ>communications error <code>
Notes:
◆ This command will execute without any “are you sure?” checking.
Users must make sure the address and value being written will not create
an unsafe condition.
K Writing a value greater than 1 to a digital or net address will result in the
value 1 being written.
F.9 Remote Channel Message Recording
and Reviewing
4 1 00 net
Function Record network ID message for specified net. Append a ‘*’ to
the command to return to default network ID message.
Response whatever was recorded or the default message: NET <net>
Notes:
◆ For the following 2 commands, N is optional. If present, it must be in
range 1-4 and sets the recording rate for that particular message. User
Messages for the remote channels are used in the same way as user
messages for the physical channels.
K For analog channels, the alarm message is always the default: “<high>
<low> set-point exceeded”. The user messages form a preamble and
epilogue for the data value recitation during alarm messages. The default
epilogue for remote channels is null.
4 1 ZZ N
Function Record channel ZZ alarm/preamble message. N, if present,
specifies the recording rate to use. If N is not present, the
default recording rate is used. Append command with a ‘*’ or
‘0’ to return to default alarm message
Response whatever was recorded or the default message: remote
channel <ZZ> alarm
4 2 ZZ N
Function Record channel ZZ normal/epilogue message. N, if present,
specifies the recording rate to use. If N is not present, the
default recording rate is used. Append command with a ‘*’ or
‘0’ to return to default normal message.
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