Just commissioning a job at the moment and I wish to do online programming changes. My client has been working for 15 years with Siemens and he tells me that when programming in ladder and doing online changes you have to go offline, change the rung, download the whole FB and then go back online.
I was wondering if this is correct or if you can do online changes without having to muck about like this? Also, is there a simple way of changing an N/O contact to N/C or do you have to insert an N/C and then delete the N/O?
I am hoping Siemens is not so unfriendly that one has to change programs online in this way. I am used to doing what I want and just hitting the / key to change a contact orientation.
By the way gentlemen, thank you to those who assisted me with finding a more economical Modbus RTU solution. It is working fine. My client is wrapped as Siemens Australia had not thought of the Profibus Modbus solution and he had been running away from Modbus at a million miles an hour. He has now ordered a number of modules to read data from chillers, power meters and all manner of devices.
I was wondering if this is correct or if you can do online changes without having to muck about like this? Also, is there a simple way of changing an N/O contact to N/C or do you have to insert an N/C and then delete the N/O?
I am hoping Siemens is not so unfriendly that one has to change programs online in this way. I am used to doing what I want and just hitting the / key to change a contact orientation.
By the way gentlemen, thank you to those who assisted me with finding a more economical Modbus RTU solution. It is working fine. My client is wrapped as Siemens Australia had not thought of the Profibus Modbus solution and he had been running away from Modbus at a million miles an hour. He has now ordered a number of modules to read data from chillers, power meters and all manner of devices.