Spectrum Controls 1734sc-IE2CH User Manual
Page 64
B-4
Point IO™ 2/4 Channel Analog HART Module
User’s Manual Pub. 0300257-01 Rev. A
Table B-3 (HART Universal Commands)
Command
Data in Command
Data in Reply
Contained in
No
.
Function
Byte
Data
Type
(1)
Byte
Data
Type
(1)
Input
Tag
CIP
MSG
0
Read
Unique
Identified
None
0
1
2
3
4
5
6
7
8
9…11
254 (expansion)
Manufacturer identification code
Manufacturer device type code Number of
preambles required Universal command
revision
Device-specific command revision
Software revision
Hardware revision
Device function flags
(2)
Device ID number
(H)
(B)
x
x
x
x
x
x
x
x
x
x
1
Read
primary
variable
0
1…4
PV units code Primary variable
(F)
x
x
x
2
Read
current and
percent of
range
None
0…3
4…7
Current (mA)
Primary variable %
(F)
(F)
x
x
x
x
3
Read
current and
four
(predefined)
dynamic
variables
None
0…3
4
5…8
9
10…13
14
15…18
19
20…23
Current (mA)
PV units code
Primary variable
SV units code
Secondary variable
TV units code
Third variable
FV units code
Fourth variable
(3)
x
x
x
x
x
x
x
x
x
x
x
x
x
6
Write
polling
address
0
Polling
address
As
in
command
11
Read unique
identifier
associated
with tag
0…5
Tag
(A)
0…11
As in command 0
12
Read
message
None
0…23
Message (32 characters)
(A)
x
13
Read tag,
descriptor,
date
0…5
6…17
18…20
Tag (8 characters)
Descriptor (16 characters)
Date
(A)
(A)
(D)
x
x
x
14
Read PV
sensor
information
0…2
3
4…7
8…11
12…15
Sensor serial number
Units code for sensor limits and min span
Upper sensor limit
Lower sensor limit
Min span
(B)
(F)
(F)
(F)
15
Read output
information
0
1
2
3…6
7…10
11…14
15
16
Alarm select code
Transfer function code
PV/range units code
Upper range value
Lower range value
Damping value (seconds)
Write-protect code
Private-label distributor code
(F)
(F)
(F)
x
x
x
x
x
x
16
Read final
assembly
number
None
0…2
Final assembly number
(B)
x
17
Write
message
0…23
Message
(32 characters)
(A)
As in command
18
Write tag,
descriptor,
date
0…5
6…17
18…20
Tag
(8 characters)
Descriptor
(16 characters)
Date
(A)
(A)
(D)
19
Write final
assembly
0…2
Final assembly
number
(B)