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10
Port Splitters
1747-DPS1 Network Port
The Network port on the 1747-DPS1 splitter allows message initiation from the
controller as well as ASCII write initiation to be passed through. The port
configuration is fixed at DF1 full-duplex, 19.2 Kbps, 8 bits, no parity, 1 stop bit, and
CRC checksum.
The Network port can source power from the port-splitter's external Class 2 power
supply to a 1761-NET-AIC or 1761-NET-ENI interface, if a 1761-CBL-AM00 or
1761-CBL-HM02 cable (or equivalent) is used.
IMPORTANT
IMPORTANT
1747-DPS2 Network Port
The Network ports on the 1747-DPS2 port splitter allow message initiation from the
controller as well as ASCII write initiation to be passed through.
The Network ports also allow communication with DH-485, DF1 half-duplex, DF1
full-duplex, and DF1 radio modem networks. The communication parameters are
also configurable.
IMPORTANT
The Network port is programmed as DH485 from the factory.
The Network port is configured with a software utility that you can download from
http://www.ab.com/programmablecontrol/plc/slcsystem/downloads.html.
Publication 1747-IN516B-EN-P - October 2007
Do not connect a MicroLogix 1100 controller to the Port Splitter Network port.
Permanent damage to the MicroLogix 1100 communication port may result.
If a 1761-NET-DNI or 1761-NET-ENI interface is connected to the Network port,
their serial ports must be configured for 19.2 Kbps. Do not attempt to use their
autobaud capability.
If a 1761-NET-DNI or 1761-NET-ENI interface is connected to the Network port,
their serial ports must be configured for 19.2 Kbps. Do not attempt to use their
autobaud capability.
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