Spectrum Controls 1734sc-OE2CIH - Manual (Page 53)

Chapter 4: OE2CIH and HART 4-17
User’s Manual Pub. 0300272-01 Rev. A.0
HART Pass- through “Reason Code” definitions
The HART Pass-through Reason Code is a value that is reported when a Pass-through
reply message returns the general Status value as DR_DEAD(35). It provides you with a
diagnostic code to look up more detail on why the pass-through message failed. This
code is returned in Offset 3 of the reply message for Pass-through Init or Query messages
whenever the Status value at Offset 0 is set to DR_DEAD(35).
Table 4-12 HART Pass-through Reason Codes
HART Pass-through Reason Code
Value Definition Notes
0×81 No response from HART device
0×82 Invalid long frame address Only applies to FULL-HART
format
0×83 Invalid HART message checksum Only applies to FULL-HART
format
0×84 HART Command not allowed (blocked by
module) Only applies to Ladder Pass-
through
0×85 Invalid Channel selected NA
0×86 Channel is not HART-enabled Channel needs to be configured
for HART
0×87 Channel does not have a device connected Module has not established
HART communications on this
channel
0×89 Size of CIP message too small to hold size of
HART message Module looks at HART Data size
field in request, and validates that
the incoming CIP message size is
large enough to send all the data
0×8A Invalid Handle Only applies to a Query message
0×8B Invalid Start Delimiter Only applies to FULL-HART
format