PLC/SCADA/DCS GROUND MUST
CONNECT BACK TO GLADIATOR
GROUND OR DC ‘-’ TERMINALS
EXTERNAL PUSH BUTTON GROUND
MUST CONNECT BACK TO GLADIATOR
GROUND OR DC ‘-’ TERMINALS
Relay will turn on during
normal system operation
or off in failed or unpowered
conditions.
Input will detect ‘0’ state during normal system
operation, or ‘1’ in failed or unpowered conditions.
4
Receiver Terminal Block
4
4
4
Receiver
Terminal
Block
Receiver
Terminal
Block
Failsafe Output Mode
Test Switch: OFF
Test terminal will provide an output which is able to switch an external failsafe relay or PLC/SCADA/DCS
input. During normal system operation this terminal will internally switch a solid state (transistor) output to
ground (or DC ‘-’). If power fails or an internal system failure occurs, the terminal will act as an open circuit.
Integral Receiver Test Switch Functions
The test terminal has two potential modes of operation for Integral units and always operates in the test input
mode for Remote units. Remote units have a separate, failsafe relay contact, which is always functional.
Test Input Mode
Test Switch: ON
Test terminal acts as an input for remote testing of the instrument’s switching function. Used to check for
malfunction of unit from a remote position, PLC, SCADA etc.
Test Input from PLC/SCADA/DCS Digital Output
Operator Controlled Press To Test
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