diogki

Thank you both for your replies. Using Virtual HSC Reset solves the peaking problem. I thought reseting via the reset input of the modules would be better...

Thank you Ausman for your reply. I have already tried this but it didn't work. I have tested one more module (IO-DI8-RO4) that has one HSC, assigning MI0 from the snap-in and the problem didn't appear. Now i have 3 flow meters operating normally ( two on EX-D16A3-RO8 and one on IO-DI8-RO4 - both set to HSC with Reset in HW) and one that is peaking on the snap-in V200-18-E6B. I think that the problem is with the snap-in. In HW Configuration the setting of the HSC is "HSC with Reset - Odd input high".

Hello. I encounter a problem and i would like your help fixing it. I have a v1210 PLC , one EX-D16A3-RO8 and one snap-in module V200-18-E6B. I have connected two flow turbines to the two HSC inputs of EX-D16A3-RO8 and the other two flow turbines to the two HSC of V200-18-E6B. In hardware configuration i have linked MI0 and MI1 to the two turbines of the snap-in module. MI2 and MI3 are linked to the two turbines of the EX-D16A3-RO8 module. Every 10 seconds i multiply every HSC MI by 360 (10x360=3.600 seconds = 1 hour) beucause i need the flow in lt per hour (you see 36000 and not 360 because in the division the factors normally have two decimal digits, so i multiply by 100 and remove the decimal point). Then i divide with the Kv factor (according to the turbine manual - Kv is the amount of pulses for every lt) and the final outcome is the instant flow. The problem is that while the flow from two turbines that are connected to EX-D16A3-RO8 are not peaking, the two turbines that are connected to V200-18-E6B are peaking every few seconds from 4.500lt/h to 12.000-13.000lt/h and back again to 4.500lt/h that is the real flow. I have checked the turbines and they don't have a problem. Maximum input is 1.000 pulses every second. Are there any suggestions? Thank you in advance

Thank you Ausman for your reply. The other questions are just examples of connecting two different kinds of signal (one from a self powered device and one from a device that reqiures external power supply), 4-20mA in both cases, to the analog inputs of the 3 different modules that i have.

Hello. I would like your help connecting my 12 analog inputs to my snap in V200-18-E6B module, EX-D16A3-RO8 module and IO-AI8 module. PLC:V1210 1st analog signal: danfoss fc51 inverter analog signal 4-20mA. It is self-powered, no external power supply required. 2nd analog signal: danfoss pressure transmitter 4-20mA it requires external power supply 24VDC I have turned all jumpers to current mode. V200 questions: 1) Does the v200 module require power supply to activate the analog inputs or the power supply is required only for the analog outputs? 2) 1st signal connection to AN0, +mA to AN0 and -mA to ACM, correct? 3) 2nd signal connection to AN0, +mA of the transmitter to AN0 and 0V of the external power supply to ACM, correct? EX-D16A3-RO8 questions 1) 1st signal connection to AI0, +mA to AI0 and -mA to 0V, correct? 2) 2nd signal connection to AI0, +mA of the transmitter to 24V from the external power supply and -mA of the transmitter to AI0, correct? IO-AI8 questions 1) 1st signal connection to AI0, +mA to AI0 and -mA to COM, correct? 2) 2nd signal connection to AI0, +mA from the transmitter to AI0 and 0V from the external power supply to COM, correct? Thank you in advance