Gambit

[Important Notice]GX Works3 Ver.1.100E has been discontinued due to a flaw found in the ladder editing function.We apologize for the inconvenience, but please use Ver.1.097B until the revised version is posted.The revised version will be released in late November.

I think this could be the problem   9) In the redundant extension base configuration, the module extension parameter used by the module on the extension base unit must be stored in the intelligent function module. If the parameter is stored in the CPU module, an error occurs when the module is turned on or the module status is switched from STOP to RUN. Before writing the module extension parameter to the intelligent function module, set the CPU module to redundant mode.

flashing backup LED means the system could not switch.  Check SD1642 Did you try settting SM1762 and resetting the system  

SM1762 Operation setting for access from the standby system to the extension base unit Is this bit set ?

Your using Read input registers but it looks like you want to read holding registers ??? D0 but i don't see it set up in your program. I guess you want to use D10 but in your settings it's still D0 D100 has the start adress which should be 0 but in your program it's 0 Try reading 0ne register first instead of three and see if you have an offset of 1,.

Your using Read input registers but it looks like you want to read holding registers ??? D0 but i don't see it set up in your program. I guess you want to use D10 but in your settings it's still D0 D100 has the start adress which should be 0 but in your program it's 0 Try reading 0ne register first instead of three and see if you have an offset of 1,.  

Go for Graphic ver. 2 You can check the differences in de e-manual viewer  

Which GOT grahic version are you runniing ?   You can find this under GOT Type Setting

you have two posts

Which software are you using ?? Probably you're in monitor mode. I am guessing GX Developer. Try pressing F2 or if you saved your project in monitoring mode  Tools -? option -> Don't write to PLC (top right)  

Most likely you have an ethernet TCP connection and the setting between the SCADA and the PLC are different regarding establishing the connection again after there is a failure. I know the System Q on default it will close the port after about 40 min. If the keep alive has been set. Now if the scada has a very small retry settings it will try to open a port which is already open and you're stuck waiting until the port has been closed.   Change the settings on either side or maybe change to a UDP connection then you do not have any issues opening and closing ports. But this is a guess... Like @pturmel mentioned some more information is required for a better answer. Which PLC for instance and did you check the ethernet diagnostics from the PLC.

You want to enter only 90 right ? All yuou have to do is for the numerocal input to go to the operational Tab. Select Data operation and change the data operation to data expression. For write multiple the Monitor device with 10000 For Monitor divide with the same value   

This is a connection fot he RJ71EN71 to be a modbus Slave. you only need one. But is you would like a second connection then the port nr should be different   But You want to comm with two modbus slaves. You do this in the simple PLC comm settings in GX Works 3. You can find this in the params of the RJ71EN71. Here you can directly acces the Holding Reg etc and copy those to D or vice versa