Product Description
Modbus Master (Serial Communication) Module IS420PSCAH1B is an I/O pack that is used to provide electrical interfacing between a serial communications terminal board and up to two input-output Ethernet networks. This module also contains a BPPC processor board that is common to most if not all of the Mark VIe I/O packs as well as a serial communications board. Note that the BPPC has the capability to be used with a ControlST version of 4.07 or later. All of the inputs supplied to this module are sent through a three-pin power input as well as dual RJ45 connectors.
This module has six configurable serial channels. The IS420PSCAH1B module supports three different modes, RS422, RS485 half duplex, and RS232 modes. The channels have a variety of configurable features, some are as follows:
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Data Bits: Seven, Eight
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RTU
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Station addresses
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Baud Rate: 300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, and 115200
These features are used to help support high-speed functionality and reliability. All of the information regarding these features can be found in the GEH-8655 Vol II manual in chapter nine.
The IS420PSCAH1B module has the capability to perform self-diagnostic tests, one of which is continuous monitoring of the internal power supply to help with correct operation. A power-up self-test will also be used to help check the different types of memory, Ethernet ports, and the remainder of the processor board hardware.
There are a variety of different alarms relating to the IS420PSCAH1B module, some of these alarms are as follows, 72107, 114-119, and 32-67. Each alarm has a different solution that can be found in chapter 9.2 of the GEH-6855 Vol II manual.
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