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Interfaces to automation systems
8.2 Modbus interface
SITRANS SL
146
Operating Instructions, 12/2010, A5E01132948-04
8.2.4.3
Modbus alarm list
The status information is transferred in 32 bit integer words. SITRANS SL uses four Word-
Registers representing the detailed status information.
Status Word 1
Status Register description
DWORD
BIT position
Description
Error Code
1
0
"No transmission"
E1
1
1
"Low transmission "
E2
1
2
"Receiver power"
E3
1
3
"Receiver junction power"
E4
1
4
"Transmitter power"
E5
1
5
"Startup procedure active"
E6
1
6
"Shutdown procedure active"
-
1
7
"Line locking failure"
E8
1
8
"Save settings active"
E9
1
9
"Process temp. range"
E10
1
10
"Process pressure range"
E11
1
11
"Ext. temperature bad"
E12
1
12
"Ext. temperature low limited"
E13
1
13
"Ext. temperature high limited"
E14
1
14
"Ext. temperature constant"
E15
1
15
"Ext. pressure bad"
E16
1
16
"Ext. pressure low limited"
E17
1
17
"Ext. pressure high limited"
E18
1
18
"Ext. pressure constant"
E19
1
19
"Ext. temp. source disconnected"
E20
1
20
"Ext. pressure. source disconnected"
E21
1
21
"Laser current lower limit"
-
1
22
"Ext. temperature uncertain"
E23
1
23
"Ext. pressure uncertain"
E24
1
24
"PROFIBUS configuration error"
E25
1
25
"PROFIBUS connection error"
E26
1
26
"PROFIBUS master switch off"
E27
1
27
"PROFIBUS internal error"
E28
1
28
"Temp. comp. file range"
E29
1
29
"Prs. comp. file range"
E30
1
30
"CurveFit temp. file range"
E31
1
31
"CurveFit prs. file range"
E32