Spectrum Controls 1734sc-OE2CIH - Manual (Page 62)

4-26 Chapter 4: OE2CIH and HART
User’s Manual Pub. 0300272-01 Rev. A.0
Reply Data
HART Ladder Passthrough Query - Reply packet structure
Reply Size = 6 to 260 bytes
Offset Field Value Definition
0 Status 00 = Success
34 = DR_RUNNING
35 = DR_DEAD Query Status
1 HART Command 0 to 255 (1 byte) Echo of HART command
2 HART CommStatus (1 byte) HART Reply Status Byte #1
3 HART
FieldDeviceStatus
OR
Reason Code if
status = 35 (1 byte) HART Reply Status Byte #2
Reason Code is a diagnostic value
returned when message fails (Status
= 35)
4 Data Size 0 to 255 (1 byte) Number of Data bytes in reply for
HART command
5 to
257 HART Reply
Data … Data bytes returned in data field of
HART reply to requested command
Table 4-18 Flush Ladder Queue (Service Code = 0×50)
Unconnected Message
Field Value Definition
Message Type CIP Generic
Service Code 0×50 Flush Queues
Class Name 0×035D HART Object
Instance 0 = All Channels
1 to n = Single Channel(n-1) All channels at once
or a single channel
Object Attribute None, leave this field blank
Request Size 0 No Request Data
Reply Size 0 Number of Data
bytes returned
Request Data
HART Flush Ladder Queue - Request packet structure
Request Size = 0
Offset Field Value Definition
No Request Data
Reply Data
Set Flush Ladder Queue - Reply packet structure
Reply Size = 0 bytes
Offset Field Value Definition