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Introduction

a) The ARTC HIMA level crossing monitoring system comprises of a HIMA HIMatrix safety controller Central Processing Unit (CPU) and, depending on the I/O requirements, may also include extra Remote AIO and/or DIO units to monitor additional analogue and digital I/O.

b) The ARTC HIMA level crossing monitoring system processes the digital and analogue I/O to generate, record (in a non-volatile event record), and report alarm and events.

c) Alarms and events can, where required, be reported to ARTC’s Train Control System1 and are mandatorily reported to a Central Level Crossing Monitoring Workstation via a 3G or 4Gcommunications link. Typically, this connection will be via the Modbus TCP protocol, where the HIMA acts as the Modbus slave. However, other protocols may also be used and/or implemented in the future.

d) A 3G/4G network router shall be provided.

e) The event recorder is implemented within the HIMA COM processor as ComUserTask module and is accessible and configurable by local and remote maintainers via a web interface.

f) The HIMA system can be interrogated locally or remotely via the HIMA SILWorX maintenance tool via the Remote Maintenance Workstation.

g) A local maintenance panel may be used to show the status of the level crossing monitor and to allow maintainers to enter maintenance mode (to supress remote alarms) and calibrate the sensors.

Hima Main Serise

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