minerman
Member
Hello,
I have an: Analog input module SM 331; AI 8 x 12 bit;(6ES7331-7KF02-0AB0)
I have 4 channels that are set up for 2-wire 4-20mA signals. HW config is set and the jumper on the side of the module is set to "D".
The 4 channels are wired to a current source. When I hook a multimeter to the source, I see 20mA DC. When I hook a source up to a channel, it reads around 13mA. Even when the source is set to transmit 4mA, or anything in between, I always see 13mA. If I disconnect the source from the card, I read about 54mA out of the card.
Anybody know what I'm doing wrong?
I have an: Analog input module SM 331; AI 8 x 12 bit;(6ES7331-7KF02-0AB0)
I have 4 channels that are set up for 2-wire 4-20mA signals. HW config is set and the jumper on the side of the module is set to "D".
The 4 channels are wired to a current source. When I hook a multimeter to the source, I see 20mA DC. When I hook a source up to a channel, it reads around 13mA. Even when the source is set to transmit 4mA, or anything in between, I always see 13mA. If I disconnect the source from the card, I read about 54mA out of the card.
Anybody know what I'm doing wrong?