C400 ABB

C400    ABB    

General set-up rules

An ABB AC 31 system always includes an AC 31 central unit.

Each 07CR42 and 07CT42 central units incorporate a specific number of binary inputs / outputs and analog inputs. It is possible, to increase the number of inputs / outputs, to add input / output extensions connected directly to the 07CR42 and 07CT42 central units.

Voltage format at the analog inputs

The voltage format is only available at the analog inputs IW62.02 and IW62.03. The measuring range is ±10 V with a resolution of 11 bits plus sign.

1 LSB = 20 V / 212 = 4.88 mV The numerical value = 

[Input voltage (in volts) / 10] * 32767, the range = - 32767 ≤ X ≤ + 32767

Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0

- 10 5 2,5 1,25 625 313 156 78 39 20 10 5 0 0 0 0

Sign V V V mV mV mV mV mV mV mV mV 0

Relationship between the measured value and the positions of the bits in the 16-bit word

The numerical value range is  - 32767…. + 32767 Range overflow:  + 32767 , range underflow: -32767 

Warning:

If an analog input is not connected or if the signal line is broken, the analog value read by the user program will be:

         Value = +10800 (+/- 1%), this means about 3.5 V In case of short-circuit:      Value = 0 (+/- 1% of full scale)

Fast reading with fix frequency, independently of cycle time, around 2.5 ms

SAFT183VMC

SB512

SB822

SC510

SC513

SC520

SD812F

SD833

SDCS-AMC-DC-D2

SDCS-CON-4

SDCS-CON-4-COAT-ROHS

SDCS-PIN-51-COAT

SE96920414 YPK112A

SK-11

SK616001-A

SK829007-B

SLMG99

SNAT604IFS

SNAT609TAI

SNAT617CHC

SNAT634PAC