irondesk40
Member
Have a program running in a plc that a integrator did for one of our plants, and trying to understand it.
It is a slc500, with a 1746-NI16I 16 channel analog input card.
There is a section in the program, which I will attach, where certain bits in a channel are being referenced, that I do not fully understand, and hope someone can explain. I have downloaded the user manual for the analog card, but still not certain what the bits are.
In the attachment, there is the Mov I:1.1 into N12:21
For this to happen, one of the conditions that have to be true is labeled as I1:/285
If you put the mouse pointer over it, it shows I:1.17/13
Do not understand why he did this, it is a 16 channel input card, which I understand to be channels 0-15.
Is I:17/13, which I understand to be channel 17, bit 13 linked to input channel 1?
Will try and read more of the manual, but if someone could point me in the right direction, THANKS
It is a slc500, with a 1746-NI16I 16 channel analog input card.
There is a section in the program, which I will attach, where certain bits in a channel are being referenced, that I do not fully understand, and hope someone can explain. I have downloaded the user manual for the analog card, but still not certain what the bits are.
In the attachment, there is the Mov I:1.1 into N12:21
For this to happen, one of the conditions that have to be true is labeled as I1:/285
If you put the mouse pointer over it, it shows I:1.17/13
Do not understand why he did this, it is a 16 channel input card, which I understand to be channels 0-15.
Is I:17/13, which I understand to be channel 17, bit 13 linked to input channel 1?
Will try and read more of the manual, but if someone could point me in the right direction, THANKS