ABB AC31 - Connection of the serial interfaces COM2

Data Value
Electrical isolation No
Fig. 18
Max. permissible potential difference between
terminal ZP (minus the supply voltage) and
terminals AGND (minus the analog inputs and
outputs)
± 1 V
Caution: The internal reference is no longer M
but ZP.
Fig. 18
Indication of output signal 4 yellow LEDs to indicate the signal statuses
of the analog outputs (2 LEDs each at DA501
and DA502)
Output signal ranges (configurable) -10 V ... 0, 0 ... +10 V
0 ... 20 mA
4 ... 20 mA
Output load capability of voltage output max. ±10 mA
Resolution 12 bit (+ sign)
Resolution (1 LSB), range 10 V ... 0, 0 ... +10
V
approx. 5 mV
Relationship between output signal and hex
code
-100 % ... 0 ... +100 % = 9400H ... 0000H ...
6C00H
(-27648 ... 0 ... 27648 decimal)
Conversion cycle 1 ms (for 4 inputs + 2 outputs)
1 s when measuring with resistance thermom-
eter Pt/Ni
Conversion error of the analog values due to
non-linearity
Adjustment error on delivery and resolution in
the nominal range
Typ. 0.5 %, max. 1 %
Max. cable length, 2-core shielded and con-
ductor cross section > 0.14 mm²
100 m
For further information, please refer to the existing documentation
System description Advant Controller 31.
Connection of the serial interfaces COM2
The COM1 interface is no longer available. The assignment of the COM2 interface remains the
same as in the existing device. Programming in Automation Builder can be performed via the
COM2 interface.
Data Value
Interface standard EIA RS-232
Programming 07KT94-ARC-AD: 907 PC 331
07KT98-ARC-AD: Automation Builder
AC31 Adapters
Replacement devices: CPU > Replacement device 07KT9x-AD
2018/09/24 3ADR010122, 8, en_US 51