ABB Arc Guard System TVOC-2-COM Configuration Manual page 27

Modbus
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Draft, ne pas diffuser Wed Dec 05 2018 12:41:51 GMT+0100 (Romance Standard Time)
Error x DTC, number y and z
4.4.3.4
A diagnostic trouble code (DTC) consist of 6 numbers.
When displayed on the HMI it has the following format:
n6-n5-n4-n3-n2-n1, where n<n> denotes number n.
Example: With DTC 64-0-0-2-0-0, number 3 has value 2 and
number 6 has value 64.
Two numbers are stored in each register, the first number
(y) in the most significant byte and the second (z) in the
least significant.
Number of errors
4.4.3.5
The number of errors that has occurred.
4.4.4
Custom name registers
The custom name registers contains the letters in the
custom name that can be programmed to the HMI.
Allowed characters are the alphanumeric characters plus
"-", "_" and " " (space). This means ASCII character 32, 45,
48-57, 65-90, 95, 97-122. If not all 16 characters are needed,
the trailing characters should be set to value 32 (space) to
keep the layout of the name center aligned.
In each register, two characters are stored. One in the
most significant byte and one in the least significant.
Example: To set the custom name to "Example" the
registers should be set as follows
Custom name, letter 1 and 2
Custom name, letter 3 and 4
Custom name, letter 5 and 6
Custom name, letter 7 and 8
Custom name, letter 9 and 10
Custom name, letter 11 and 12
Custom name, letter 13 and 14
Custom name, letter 15 and 16
Using modpoll (see 5.2 Example of reading with modpoll
below) the command is:
modpoll -m rtu -a 247 -0 -r 400 COM1 0x4578 0x616D 0x706C 0x6520 0x2020 0x2020 0x2020 0x2020
Custom name, letter x and y
4.4.4.1
Letter x is stored in the most significant byte, letter y in
the least significant byte.
4.4.5
Installed modules
This register contains a bit field that reflects which
modules are installed and detected on the Arc Guard
System™ TVOC-2.
A high bit signals an installed module.
Bit
15
14
-
-
Example: the value 0x000E shows a system that contains
an internal HMI and extension modules X2 and X3.
ABB
ARC GUARD SYSTEM™ – T VOC-2- COM MODBUS CONFIGUR ATION MANUAL
0x4578 (Ex)
0x616D (am)
0x706C (pl)
0x6520 (e )
0x2020 ( )
0x2020 ( )
0x2020 ( )
0x2020 ( )
13
12
11
10
-
-
-
-
9
8
7
6
5
-
-
-
-
CSU22
4
3
2
1
CSU21
X3
X2
External
HMI
27
0
Internal
HMI

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