Table of Contents
2624-2655
Description IOPoint [ ] - HART extended status mismatch - configured: [ ] received: [ ]
Possible Cause The number of extended status bytes returned in Hart Message 48 (Read extended status) does not agree
with the ToolboxST configuration.
Solution Verify that the correct device is attached, and set the ToolboxST configured value to either 0 or the received
value.
2656
Description HART control messages disabled. AMS HART messages only
Possible Cause The AMS_Msgs_Only parameter is Enabled. No control messages are sent. This parameter overrides
the values in the Hart_Ctrl and Hart_ExStatus for each individual channel.
Solution
•
To send AMS messages only, but clear this alarm: Set the AMS_Msgs_Only parameter to Disabled and set each
channel's Hart_Ctrl and Hart_ExStatus to zero.
•
To allow control messages and AMS messages, set AMS_Msgs_Only to Disabled.
2657
Description Coldjunction temperature [ ] value beyond specified table limits (-40 to 102°C, -40 to 215 °F)
Possible Cause
•
Cold Junction temperature exceeds the lookup table range (-40 to 101.67°C) or (-40 to 215 °F)
•
Ambient temperature is too hot/cold
Solution
•
If remote or backup cold junction is being used, then confirm those values are within the lookup table range.
•
Check the ambient temperature. If the temperatures are too high or low, power off the I/O pack and restart it after the
ambient temperatures are within (-40 to 101.67°C) or (-40 to 215 °F).
2658-2689
Description IOPoint [ ] - Internal burden resistor protection activated
Possible Cause
•
The I/O pack has detected too much ( > 30 mA) current flowing through the internal burden resistor on indicated I/O
point and has opened an internal switch to protect the given I/O point. The I/O pack periodically closes the switch and
checks again if the current has dropped below the threshold.
•
Improper device operation or Improper wiring
Solution
•
Check the field wiring and determine if a connected device is sourcing currents beyond the specified range on the given
I/O point.
•
After checking and correcting the wiring, wait approximately 15 seconds for the error to correct itself.
222
GEH-6855_Vol_II
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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