Psca Modbus Master (Serial Communication) Module; Psca Serial Communication I/O Pack - GE Mark VIeS System Manual

9 PSCA Modbus Master (Serial
Communication) Module

9.1 PSCA Serial Communication I/O Pack

PSCA Modbus Master (Serial Communication) Module

The Serial Communication (IS420PSCAH1B) I/O pack provides the electrical interface
between one or two I/O Ethernet networks and a serial communications terminal board.
The I/O pack contains a BPPC processor board common to all Mark VIe distributed I/O
packs and a serial communications board. The communications board contains six serial
transceiver channels, each of which can be individually configured to comply with
RS-232, RS-422, or RS-485 half-duplex standards.
Input to the I/O pack is through dual RJ-45 Ethernet connectors and a 3-pin power input.
Output is through a DC-62 pin connector that connects directly with the associated
terminal board connector. One of the Ethernet ports can be used to support Ethernet
Modbus communication on Simplex networks. Visual diagnostics are provided through
indicator LEDs.
The IS420PSCAH1B I/O pack contains a functionally compatible BPPC that is
supported in ControlST V04.07 and later.
BSCAH1A
BSCAH#A
communications
communications board
board
SSCAH1A
Communications
Six serial
Terminal Board
communication
channels
Public Information
PSCAH1A
PSCAH1
communications
Communications
module
Module
Processor board
GEH-6855_Vol_II System Guide 285
Single or dual
Ethernet cables
ENET1
ENET2
External 28 V dc
power supply