Spectrum-controls 1734sc-OE2CIH Uživatelský manuál stáhnout pdf (Strana 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

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

1 2 ... 48 49 50 51 52 53 54 55 56 57 58 ... 73 74

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