Redundancy; Redundant Behaviour According To Auma Redundancy - AUMA AUMATIC AC 01.2 Manual

Actuator controls
AC 01.2/ACExC 01.2 Modbus RTU
4.3.

Redundancy

4.3.1.

Redundant behaviour according to AUMA redundancy

Offset (hexa- Offset (decimal)
decimal)
0x0034 52
0x0035 53
0x0036 54
0x0037 55
0x0038 56
0x0039 57
0x003A 58
0x003B 59
0x003C 60
0x003D 61
0x003E 62
0x003F 63
0x0040 - 0x0047 64 71
0x0048 0x004F 72 79
0x0050 - 0x0057 80 87
0x0058 0x005F 88 95
0x0060 0x0067 96 103
0x0068 0x006F 104 111
0x0070 0x00C7 112 199
— Option —
To increase safety of the installation the actuator controls can be equipped with a
redundant Modbus interface.
The following redundant operation modes are supported:
1. Redundant behaviour according to AUMA redundancy (AUMA redundancy I or
AUMA redundancy II)
2. Redundant behaviour using both a redundant loop and the SIMA master station
The redundant behaviour is set using the following parameter: Device configuration
> Modbus > Redundancy M0800
The physical structure of the redundant Modbus interfaces within the controls is
based on two independent, galvanically isolated Modbus interfaces with an internal
RedCom data channel for exchanging the communication status.
AUMA redundancy I
In general, the actuator decides autonomously which of the Modbus communication
channels will be the active channel and therefore be able to operate the actuator
and which channel will be the passive channel only providing feedback signals of
the actuator. The slave addresses can be individually assigned for both
channels.
Description of the data interface
Contents (for details refer to <Description of the
output data>)
—
—
—
—
—
—
Fieldbus DOUT 6 (byte 8)
Fieldbus DOUT 5 (byte 8)
Fieldbus DOUT 4 (byte 8)
Fieldbus DOUT 3 (byte 8)
Fieldbus DOUT 2 (byte 8)
Fieldbus DOUT 1 (byte 8)
Actual process value (high byte)
Actual process value (low byte)
Fieldbus output AOUT 1 (high byte)
Fieldbus output AOUT 1 (low byte)
Fieldbus output AOUT 2 (high byte)
Fieldbus output AOUT 2 (low byte)
—
(byte 9)
(byte 10)
(byte 11)
(byte 12)
(byte 13)
(byte 14)
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