S7 EM 221 6ES7 221-1BF22-0XA0
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EM 221, 8DI, DC 24V, SINK/SOURCE |
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S7-200 CPU
S7-300 CPU S7-400 CPU S7-1200 CPU S7-1500 CPU / ET200MP LOGO Allen Bradley L32E PLC: VIPA, Helmholz, FastWel ... Schneider PLC ET200S ET200SP ET200M IO module Profibus, RS-485 MicroMaster Panel MP370, KTP400 PC adapter Simatic Net CP, OLM PowerPG PS 307/ PS 407 / Sitop Memory Card MMC/CF Encoder and Sensor Other Tube Printer Connect PLC =24V output to =5V TTL Contact
S7-300 CPU S7-400 CPU S7-1200 CPU S7-1500 CPU / ET200MP LOGO Allen Bradley L32E PLC: VIPA, Helmholz, FastWel ... Schneider PLC ET200S ET200SP ET200M IO module Profibus, RS-485 MicroMaster Panel MP370, KTP400 PC adapter Simatic Net CP, OLM PowerPG PS 307/ PS 407 / Sitop Memory Card MMC/CF Encoder and Sensor Other Tube Printer Connect PLC =24V output to =5V TTL Contact