ICS Triplex T7481A Monitored Guarded Output Module with 16 Field Loads, Fault-Tolerant Operation
Monitored Guarded output modules provide Guarded control and line monitoring for sixteen field loads. Three types of modules are available for interfacing to outputs powered from 24 VDC, 110 VAC, or 120 VDC field power supplies.
These modules are referred to as Guarded because each module's dual-redundant design ensures that no single fault within the module can inadvertently apply power to an output. In addition, the modules monitor the output field wiring for open-circuit and short-circuit faults.
Individual output line status is made available to application programs, allowing continuous supervision of output operation and field wiring integrity.

- Sixteen Guarded outputs (arranged in two groups of eight)
- Fault-tolerant operation when connected in parallel with another module of the same type
- Hot-replaceable for minimal downtime
- Fuses accessible from the front panel for easy replacement
- Complete, automatic testing of all output circuits
- Automatic line monitoring detects open-circuit and short-circuit field wiring faults
- Individual front panel indicators show module fault/active status and shutdown state
- Additional indicators display output status and load/fuse fault for each point
- Minimum 2500 V electrical isolation between field and logic circuits
- TÜV certified, Risk Class 5
Each output module is configured using the WINTERPRET I/O Configuration Editor. To configure the module, follow the four steps below:
- Position the cursor on the module slot you wish to define
- Select Set Module Type from the Edit Menu, then choose the appropriate Monitored Guarded Output Module from the list
- Select Edit Module Definition from the Edit Menu
- A dialog box will open, allowing you to define the output point definitions for the module
- With the cursor at the top of the list in the Module Definition dialog, open the Monitored Guarded Output Module Definition dialog by pressing Enter or double-clicking the "(Module)" selection
- If the module is to operate in dual mode (wired in parallel with another module for fault tolerance), check the Dual Mode selection in the dialog box
- Enter the I/O Assembly number (1-16) and I/O Slot number (1-10) of the redundant module. This must be done for each of the two modules operating in dual mode
- From the Module Definition dialog box, select Edit to define a name and description for each output point
- In the Monitored Guarded Output Point dialog, enter the names and values for the configuration fields as required
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