ABB CM30 - Page 76

ControlMaster CM30 and CM50
Universal process controllers,
1
/4 and
1
/2 DIN 10 Specification
74 IM/CM/ED–EN Rev. B
Maths blocks
Delay timers
Logic Equations
Custom linearizer
Analog inputs
Universal process inputs
Non-universal process inputs
Thermocouple types
B, E, J, K, L, N, R, S, T
Resistance thermometer
PT100
Other linearizations
x, x
3/2
, x
5/2
, custom linearization
Digital filter
Programmable 0 to 60 s
Display range
–99999 to 999999
Update rate
125 ms
Common mode noise rejection
>120 dB at 50 / 60 Hz with 300  imbalance
resistance
Normal (series) mode noise rejection
>60 dB at 50 / 60 Hz
CJC rejection ratio
0.050 °C / °C change in ambient temperature
Temperature stability
0.02 % / °C or 2 µV / °C (1 µV / °F)
Long term (input) drift
<0.1 % of reading or 10 µV annually
Input impedance
>10 M (millivolts input)
10 (mA input)
Number 8
Operators +, -, x , /
Average, Maximum, Minimum
High / Low / Median Select
Square root
Multiplexer
Number 2
Programmable Delay
Duration
Number 8
Elements 15 per equation
Operators OR, AND, NOR, 
NAND, NOT, EXOR
Number 2
Elements 20 breakpoints
Number 2 (1 standard, 1 optional)
Type Voltage
Current
Resistance (ohms)
3-Wire RTD
Thermocouple
Digital volt-free
Digital 24 V
Frequency (Input 1)
Pulse
Number 2 (1 standard, 1 optional)
Type Voltage
Current
Thermocouple (if associated universal
input is configured as thermocouple)
Digital volt-free
Digital 24 V