[Modbus]

Hello

I am trying to read inputs and outputs via modbus tcp from an other plc. i have succeed in reading iputs or outputs but how can i do that simultaniously? 

[Slave addresing modbus]

i am trying to read an input via modbus tcp from a vision 700 with a vision 700. I succeed in reading MIs but i cant find the right addresing for Inputs. Its confusing.. Can someone tell me the adress if I want to read input 0.

There is a type: Pointer + Operand Offset + MODBUS Offset witch i can not understand. Can someone pls explain?

Thank you.

[web server timers]

Hello. Noob here need some help.

Is it possible to change values in timers through webserver and save that value? I can change the value but oly for one time countdown.

[sm 70 -j-RA22 analog input]

Thanks for your reply. So helpful! thank you.

[sm 70 -j-RA22 analog input]

Thank you very much! 

[sm 70 -j-RA22 analog input]

Hi i try to connect this transmiter https://store.clarksonlab.com/HI8936C.aspx . 

it has the following terminal. 1. 20+ vdc 2. com 3. com 4. 4-20ma.  

1and 2 is the power supply and 4-20 should go in the analog input. plc and transmiter have the same power supply.

i get no signal. I can measure 4-20 ma between +20 vdc and 4-20 ma at the transmiter.

samba has 37 Ω resistance analog input and this transmiter is max 500 Ω output should i use a 500 Ω  resistance connected in series? 

thank you in advace!

 

 

[sm 70 -j-RA22 analog input shows 32767]

i always get 32767. i set the jumper as follows:

jp1 A     

jp2 A

jp3 A

jp4 B

jp5 A

jp6 A

jp7 A

jp8 B

jp9 B

jp10 B

jp11 A

JP12 B

i use a 2 wire current sensor 4-20 mA.

i have connected the + of the sensor to the ps and the - to the analog input 5.

i configured the ai5 for 4-20mA.