Modular PLC expansion module Siemens S7-1500 SM 521 6ES7521-1BL00-0AB0
Modular PLC expansion module Siemens S7-1500 SM 521 6ES7521-1BL00-0AB0
Description:
SIMATIC S7-1500, digital input module DI 32×24 V DC HF, 32 channels in groups of 16; of which 2 inputs as counters can be used; input delay 0.05..20 ms input type 3 (IEC 61131); diagnostics; hardware interrupts: front connector (screw terminals or push-in) to be ordered separately
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