irondesk40
Member
with a slc500 plc, if you have a tank that holds water, and has a pressure transmitter at the bottom of the tank that will give 4-20ma if tank is empty or full.
When full the tank holds 70,000 gallons of water. So 20ma = 70,000 gallons.
I experimented on the bench with a slc500, can use the scp instruction to take the 4-20ma input (0-16383) to show 0-100%
How can you show the pounds, since you can not use a number about 32767 without faulting the plc?
Under data files, you can not have a Long, which is what I have used in the past with the micrologixs 1200.
When full the tank holds 70,000 gallons of water. So 20ma = 70,000 gallons.
I experimented on the bench with a slc500, can use the scp instruction to take the 4-20ma input (0-16383) to show 0-100%
How can you show the pounds, since you can not use a number about 32767 without faulting the plc?
Under data files, you can not have a Long, which is what I have used in the past with the micrologixs 1200.