Siemens SIMATIC SM 335 - Table of Contents

Data Exchange with the SM 335
3-22
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Open-wire test (DR1, Byte 12)
You use the open-wire test parameter (byte 12 in data record 1) to determine whe-
ther an open-wire test is to be executed for the relevant analog input.
76543210
Analog input CH0
Analog input CH1
Analog input CH2
Analog input CH3
= 1: Test channel for open wire
= 0: No test
Fig. 3-5 Meaning of the bits in the “open-wire test” byte