The Siemens 6ES7221-3AD30-0XB0 is a SB 1221 Digital Input/ Output Signal Module that converts the level of the external digital signals from the process to the internal signal level of the S7-1200. The 5V Signal Board is plugged direct into the SIMATIC S7-1200-CPU and linked electrically and mechanically with the CPU in this way. The installation dimensions of the CPU remain unchanged.
Type | Add-on module |
---|---|
Display | No |
No. of Analogue Inputs | 0 |
No. of Analogue Outputs | 0 |
No. of Digital Inputs | 4 |
No. of Digital Outputs | 0 |
Operating voltage | 5V DCV |