Wiring
4.3 Terminal and block diagrams
CPU 1512C-1 PN (6ES7512-1CK00-0AB0)
Manual, 09/2016, A5E35306440-AB
77
Wiring: 3-wire connection of resistance-type sensors or thermal resistors (RTD)
The following figure shows the terminal assignment for 3-wire connection of resistance-type
sensors or thermal resistors at the channel available for this (channel 4).
Note
3-wire connection
Note that line resistances are not compensated with a 3
-wire connection.
Analog-to-digital converter (ADC)
Infeed element (for shielding only)
Digital-to-analog converter (DAC)
Equipotential bonding cable (optional)
Figure 4-7 Block diagram and terminal assignment for 3-wire connection