MODBUS Interface
Verbatim Owner's Manual F-17
Response remote channel ZZ data link to remote channel YY or,
remote channel (ZZ,YY) not programmed, if no net address, or,
remote channel (ZZ,YY) already linked, if a link chain would
result.
The commands listed below report or clear existing link configurations. When
a link is cleared, the net address and criteria for both channels are untouched.
Operation of the source channel is unchanged. In fact, the only change is that
the destination channel will no longer write any data to the remote address.
Rather, it begins to read the remote address and will alarm according to the
existing criteria, just like the source or any other remote channel.
4 7 ZZ
Function Reports all linked channel pairs using ZZ as either source or
destination channel. If ZZ is 00, then the set of all linked
channel pairs is listed.
Response remote channel <ZZ,XX> <data,alarm> link to remote
channel <YY,ZZ>
4 7 ZZ-0
Function Clears all linked channel pairs using ZZ as either source or
destination channel. If ZZ is 00, then the set of all linked
channel pairs is cleared.
Response remote channel ZZ link to remote channel YY is cleared or,
remote channel ZZ is not linked, if no such link existed, or,
all remote channel links cleared, if ZZ is 00.
4 7 ZZ * YY-0
Function Clear specific link using ZZ as source and YY as destination.
Response remote channel ZZ <data,alarm> link to remote channel YY is
cleared. or, no link, if such a link does not exist.
F.13 Communications Parameters
All commands in this section allow the ‘net’ parameter to be omitted, in which
case the default network is used. If either ‘net’ or the default net (see code
4910) is 0, the command has no effect. If the ‘*’ is omitted, then the current
setting is spoken. If ‘*’ is present and ‘N’ omitted, then the parameter is set to
it’s default. If ‘N’ is present, then ‘*’ must precede it.
If the protocol currently configured on any specific net forbids alteration of a
parameter, then the command is ignored and the “Enter program code” message
is announced. The defaults for each parameter are also network dependent.
4 9 00 net
Function Announces the current setting of all applicable parameters.
Response See all codes below
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