Page 219 - Gas Detection Systems Training Manual

7.0 Changing Relay Module Settings
The SEC 3500 OI supports the SEC Relay Modules for controlling important external devices such as emergency control valves, indicators, audible alarms, etc. based on Gas levels reported by individual SEC 3100 devices, entire zones, or all zones (global) on the entire Modbus controlled by the particular SEC 3500 OI. Alarms can be mapped to individual Relay Module coils using Boolean logic. For instance; a single device alarm level can be mapped to a single Relay Module coil, or multiple alarm levels from a single device can be logically combined together to control a single coil. Essentially the combinations are almost limitless.
Relay Module Coil Mapping Considerations:
• A single device can be mapped to multiple Relay Module coils.
• Multiple alarm levels can be logically combined together to control a Relay
Module coil.
• Multiple devices combined in a single zone can be mapped to multiple coils.
• Multiple zones (global) can be mapped to multiple coils.
Coil Configurations/Considerations:
• Normally Open or closed (constantly energized or de-energized).
• Latching Modes; Normal (off), Latching (on), or Audible (in HMI version
2.1.0080+).
• They can individually be manually forced on or off whether or not they have
been configured for control by a device, zone or a global (all devices/zones) alarm set.
Sensor Electronics Corporation 5500 Lincoln Drive Minneapolis, Minnesota 55436 September 29th, 2006
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952-938-9486
SEC 3500 OI Supervisor Operator’s Manual Version 2.1.0095