Owner's manual

Chapter 4: OE2CIH and HART 4-5
User’s Manual Pub. 0300272-01 Rev. A.0
All three interface types have equal priority:
 The User Ladder interface uses a simplified HART interface (EZ-HART) that
only requires the user to send the HART Command number along with its data
bytes (if any) in the request data for the Init Pass-through message without
having to know how to format a real HART message. In addition the Ladder
interface has a MsgReady indicator tag in the Input table to facilitate
determining when the pass-through is complete.
 The RSLogix and Asset SW interfaces require creating a complete HART
message (without preambles) as defined by the HART protocol specifications.
A pass-through message is processed with equal priority with the Device Variable scan
command (3 or 9) so the scanning on any one channel looks like this:
4.2.5 Identity Object
This object class supports the Reset service.
Table 4-3 Identity Object
Class Code:
0×01
Instance(s):
#1=entire module
Class Attributes:
None
Class Services:
None
Instance Attributes:
Instance
Attribute:
ID:
Data Type:
1734sc-OE2CIH
Notes:
Vendor ID:
1
UINT
58
Spectrum Controls
Vendor ID
Product Type:
2
UINT
10
Obsolete by ODVA
Product Code:
3
UINT
27
Revision:
4
STRUCT
(Major Rev)
USINT
1
Initial release will be
1.1
(Minor Rev)
USINT
1
Status
5
WORD
Dynamic
Serial Number
6
UDINT
Unique per module
0×1300xxxx
Product Name
7
STRUCT
(length)
USINT
30
(text)
String[28]
1734sc-OE2CIH 2 PT HART
OUTPUT