User manual

IEC61131 User and Reference Manual
April 22, 2008
294
Outputs
Type
Description
ifFwd
Integer
Communication interface to forward command message
from, as master, for selected table entry. When forwarding
interface uses a Modbus IP protocol, ifFwd selects the
type of protocol network.
When a Modbus IP protocol is selected for the Forward
Interface, the IP Stack automatically determines which
interface to use (Ethernet or existing PPP connection) to
find the requested Forward IP Address.
If a serial port is selected for the Forward Interface, and
the serial port is configured for PPP protocol, the message
will not be forwarded.
100 = Modbus/TCP network
101 = Modbus RTU over UDP network
102 = Modbus ASCII over UDP network
1 = com1
2 = com2
3 = com3
4 = com4
stnFwd
Integer
Station number of remote slave device to forward
command message to, for selected table entry.
0 to 255 in standard Modbus
0 to 65534 in extended Modbus
ipFwd
Message
IP address of remote slave device to forward command
message to, for selected table entry.
Format is 255.255.255.255.
timeOut
Integer
Time-out is maximum time the forwarding task waits for a
valid response from the forward station, in tenths of
seconds. Valid values are 0 to 65535.
See Also
setsfip2, clearsf