[S7-1500 Analogue Output Programming]

I am trying to program an analogue output on a Siemens S7-1500 unit from a 4-20ma sourced analogue input scaled over 0-250 degrees.

The analogue input will have an adjustable setting in the software for when the alarm status should occur and at this point I want the analogue alarm output to start to process at 4ma, at 5 degrees above the initial set point I want the analogue output value to be 20ma

I have no idea how to do this so any help from people is greatly appreciated and advice on which analogue output card to use would be helpful.

 

[RSLogix 5000 PID code]

Hi, can anyone help me to program a simple PID code for controling a valve. I just want to compare the set point with the process value and control the valve propoertioally Many thanks Frank

[Network Printing fro HMI 277]

I want to print reports from a Simatic 277 touch panel to a printer using the ethernet port, can anyone tell me what I need to do. I have assumed I need to use the profinet system but I have never used it before and have little idea. Do I need an adapter from the HMi or what, advice on how to do this is most welcome. I also want to print locally from the USB port whenever a report is logged in the HMI, a line at a time, any help on this as well please. Many thanks in advance.

[RS Logix 5000 run error]

I have had to reload RS logix 5000 and now it will not run and displays the message "Failed to initialize RSLogix 5000 services" on startup. It is trying to create a "sentinelClient" and cannot. Any help urgently required. Thanks

[Setting a timer preset from the HMI]

Anyone know how to send the timer preset values from the HMI, I want to be able to change a timers preset. HMI is Panel View Plus Software is RSlogix 5000 Thanks

[1769 ASCII Programming]

Does anyone have any sample code for sending a batch instruction from the 1769 ASCII card. All I want to do is send a quantity command from each ASCII port. Please note I am not a PLC expert, just trying to get the plant to run as I want it to. The code supplied does not wok and looks nothing like what is shown on the sample files from AB. PLC is Compact Logix Many thanks

[PV Plus Maintained PB Reset]

Thanks The PLC is Compact Logix L32E Are you just saying I send a unlatch instruction on startup? Do you have any sample code for sending a batch instruction from the 1769 ASCII card. All I want to do is send a quantity command from each ASCII port. Please note I am not a PLC expert, just trying to get the plant to run as I want it to. Many thanks

[PV Plus Maintained PB Reset]

Can you tell me how to do this as I am new to this PLC Thanks

[PV Plus Maintained PB Reset]

Is there a way to reset all maintained Push Buttons on a power off. I do not want anything to restart automatically on power resume. Ideally to reset all the PB's would be perfect. Many thanks

[Weight display issues]

I have an analog value showing a set of ingredients weighed. I would like to display the weighed value decreasing and the dosing value increasing as it is emptied into a mixing chamber. I am OK with the weighed value but the dosing value must rise as the weighed value decreases. I am at a loss on how to do this and any help is welcome. Software s Logix 5000

[Math function decimal places]

Could anyone please advise on how to get decimal places when using the math functions in RSlogix 5000 I have several items where I want to use the divide A / B function but the result is rounded and causes me some issues. Many thanks

[1769 ASCII Module Programming]

Can anyone please offer some advice on how to program the 1769 ASCII module. I want to send a batch request amount in litres from a PV Plus unit to a remote instrument over RS232 Comms. I am totally confused with this piece of code and any help would be most welcome. Software is Logix 5000 on Compact Logix L32 Many thanks

[Panelview Plus Alarms]

Can anyone advise on the issue of triggers for alarms in Panelview Plus systems. I want to trigger an alarm based on a digital bit change in state from 0 to 1 but keep getting error messages saying bits are not allowed. I also want to output an audiable alarm whenever an alarm is triggered and to reset the alarm from the HMI which will then become active on the next alarm to be triggered. Panelview is PV Plus 1250 Software is RSlogix 5000 PLC is Compact Logix L32E Any help much appreciated.