User Guide
MES 1003 WMS
Doc no. 100837-MAN – Rev. E1 – Rev. date 2022-10
© Danfoss IXA A/S | Page 26
Table 14: Read Coils
4.4.2.
Read Holding Registers (Modbus Function 3)
Supports 28 registers – each 2 bytes: AB
Supports 5 strings registers – each spanning 50 addresses (100 bytes)
Floating point addresses (4 bytes)
Offset 0 + Offset 1
PAH level
float value AB
0
AB
1
Offset 2 + Offset 3
Turbidity level
float value AB
2
AB
3
Offset 4 + Offset 5
pH level
float value AB
4
AB
5
Offset 6 + Offset 7
Temperature level
float value AB
6
AB
7
Offset 8 + Offset 9
Non corrected PAH level
float value AB
8
AB
9
Offset 10 + Offset 11
WSU 1 pressure
float value AB
10
AB
11
Offset 12 + Offset 13
WSU 2 pressure
float value AB
12
AB
13
Offset 14 + Offset 15
WSU 3 pressure
float value AB
14
AB
15
Offset 16 + Offset 17
WSU 4 pressure
float value AB
16
AB
17
Offset 18 + Offset 19
WSU 1 temperature
float value AB
18
AB
19
Offset 20 + Offset 21
WSU 2 temperature
float value AB
20
AB
21
Offset 22 + Offset 23
WSU 3 temperature
float value AB
22
AB
23
Offset 24 + Offset 25
WSU 4 temperature
float value AB
24
AB
25
Offset 64 + Offset 65
PAHphe level
float value AB
64
AB
65
Table 15: Read Holding Registers – Floating Point
Coil 30
Pressure Transmitter Sample Point 2
Disconnected Alarm
On when the signal from the pressure transmitter in WSU 2 is
lost, otherwise OFF
Coil 31
Pressure Transmitter Sample Point 3
Disconnected Alarm
On when the signal from the pressure transmitter in WSU 3 is
lost, otherwise OFF
Coil 32
Pressure Transmitter Sample Point 4
Disconnected Alarm
On when the signal from the pressure transmitter in WSU 4 is
lost, otherwise OFF
Coil 33
Temperature Transmitter Sample Point
1 Disconnected Alarm
On when the signal from the temperature transmitter in WSU 1
is lost, otherwise OFF
Coil 34
Temperature Transmitter Sample Point
2 Disconnected Alarm
On when the signal from the temperature transmitter in WSU 2
is lost, otherwise OFF
Coil 35
Temperature Transmitter Sample Point
3 Disconnected Alarm
On when the signal from the temperature transmitter in WSU 3
is lost, otherwise OFF
Coil 36
Temperature Transmitter Sample Point
4 Disconnected Alarm
On when the signal from the temperature transmitter in WSU 4
is lost, otherwise OFF
Coil 37
False Flow Alarm
On if the flow switch doesn’t indicate “zero flow” in between
sample point sequences, otherwise OFF
Coil 38
WSR 1 Draining to bilge Alarm
On if the flow switch in WSR 1 doesn’t indicate “zero flow”
otherwise off
Coil 39
WSR 2 Draining to bilge Alarm
On if the flow switch in WSR 2 doesn’t indicate “zero flow”
otherwise off
Coil 40
WSR 3 Draining to bilge Alarm
On if the flow switch in WSR 3 doesn’t indicate “zero flow”
otherwise off
Coil 41
WSR 4 Draining to bilge Alarm
On if the flow switch in WSR 4 doesn’t indicate “zero flow”
otherwise off
Coil 42
Local Control State
On if Local Control is Enabled otherwise off
