ABB CM30 User Manual page 76

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