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Digital Input
Internal Wetted Input exceeded range of
operation
Digital Input
External Wetted Input exceeded range of
operation
Digital Input
NAMUR input exceeded range of operation
Digital Input
Digital Input mode configured as wrong type
Digital Input
Open circuit detected on digital input signal
Digital Input
Short detected on digital input signal
Pulse
Pulse input voltage exceeds the limits of the
Accumulator
YUAA hardware
96
Description Invalid calibration settings
Possible Cause
•
Calibration file not detected
•
Calibration file corrupted
•
Calibration constants invalid
•
Hardware Failure
Solution Replace the I/O pack.
97-98
Description Cold Junction temp [ ] exceeds range limit ([ ])
Possible Cause Cold junction input to the analog-to-digital converter exceeded the limits of the converter. If a cold
junctions fails, the CJ_Backup value is used.
Solution
•
Check the mounting of the I/O pack on the terminal board.
•
Replace the terminal board.
•
Replace the I/O pack.
218
GEH-6855_Vol_II
Point Unhealthy Troubleshooting (continued)
Check field wiring. Measure incoming mA signal and verify that it is 10
mA.
Check field wiring. Measure voltage across digital inputs terminal points
and verify it is between -1 V and 21 V.
Check field wiring. Verify mA signal through field device does not exceed
9 mA. Replace the field device.
Verify field wiring and field device matches the configured Input Mode
found in the ToolboxST application.
Check the wiring between the terminal board and the device. Verify that
the recommended line monitoring resistors are being used.
Check the wiring between the terminal board and the device. Verify that
the recommended line monitoring resistors are being used.
Check field wiring. Measure incoming signal and verify that it is within -11
V and 21 V. Replace the field device.
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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