PRO AIR TPK 21 - General Holding Registers Mapping

13.3.1. General Holding registers mapping
106
Modbus
register
Modbus
address
#of
bytes(#of
registers)
Data type
Description
Read/
Writea
bility
TPW MODBUS © SENNET CONTROL GmbH Page 6 of 11
4.1 General Holding registers mapping
Modbus
register
Modbus
address
# of bytes
(# of
registers)
Data type
Description
Read/W
rite-
ability
Section 1: UMC channels data – dynamic and static
1
0
4 (2)
Float
Measurement value
UM
C #0
Ro
3
2
2 (1)
UInt16
Data type index:
0x00 = Float
0x01 = UInt32
0x02 = Bit field
*not implemented returns 0xFFFF
n/a
4
3
2 (1)
UInt16
Measurement unit index, according to BEKO/CS table
*not implemented returns 0xFFFF
n/a
5
4
2 (1)
UInt16
Point position: the number of significant decimal digits (given by the
UMC channel’s min, max and resolution properties from the CGD).
*not implemented returns 0xFFFF
n/a
6
5
2 (1)
UInt16
Channel status bits
U
H
C
I
bit0: I : initializing
bit1: C : calibrating
bit2: H : hold
bit3: U : unused
Ro
7
6
2 (1)
UInt16
Channel error bits
L
OR
UR
S
D
C
bit0: C : communication error
bit1: D : data error
bit2: S : sensor error (i.e.: disconnected)
bit3: UR : underrange
bit4: OR : overrange
bit5: L : out of limits
Ro
8
7
4 (2)
UInt32
Unix timestamp of last update of the UMC channel.
Ro
10
9
2 (1)
UInt16
UMC channel type:
0x00 = measurement
0x01 = actuator
0x02 = virtual
0x03 = unused
0xFF = none / reserved
Ro
11
10
16 (8)
String
Measurement unit string – 16 characters
Ro
19
18
4 (2)
UInt32
SI unit in coherent representation
Ro
21
20
8 (4)
UInt64
64-bit unique ID
Ro
25
24
16 (8)
String
UMC Channel name
Ro
33
32
4 (2)
Float
Minimum value
Ro
35
34
4 (2)
Float
Maximum value
Ro
37
36
4 (2)
Float
Resolution
Ro
39
38
4 (2)
Float
Fail-safe value
Ro
41
40
2 (1)
UInt16
Pre-alarm status
• 0x00: pre-alarm not active
• 0x01: pre-alarm triggered from this UMC channel
• 0xFF: this UMC channel has no alarm(s) associated with it
Ro
42
41
2 (1)
UInt16
Main alarm status
• 0x00: main alarm not active
• 0x01: main alarm triggered from this UMC channel
• 0xFF: this UMC channel has no alarm(s) associated with it
Ro