rami11

We now agreed that I can use the -600 t0 600 range for scaling with the data format two's complement binary..what scale I should use with BCD data format...I just want to understand it more.

Thanks dear...In case I use The scale of 4096 I should make Raw min=-4096 , Raw max=4096 OR Raw min=0 , Raw max=4096 .

quote name='Ken Moore' post='32609' date='Apr 27 2006, 03:46 AM'] Since you are adding an input to an existing I/O module, there should already be a BTR somewhere in your program, the BTR is reading data from the I/O module and storing it in a PLC register, an N file such as N9:x, The word that contains the raw value for your new input will depend on the which values were used on the BTR instruction. In my attached example I used N9:10 as the first address, so my raw input data is stored in registers N9:14-N9:29 (16 single ended inputs). If possible post your existing code, this way we can see exacltly what you have already. The 1771-IFE is a 12 bit card, so for a 0-10 Volt input, the card will have to be configured for a -10V to +10V, you will have a raw data default value of -4095 to +4095. Since your input has only positive voltage, you can change the default and get a raw value span of 0-4095. If this were a newer processor you could use the Compute (CPT) instruction to scale your raw data into engineering units, but it's not supported in the 5/25, so you will have to use two instructions, a DIV and a MUL. First divide the raw value by 4095, this will give you the percent of full scale, the since your engineering units are 0-600, multiply the percent by 600, the result will be the scaled result. See attached example.

by the way it's single ended

Thanks Ken 4 ur cooperation..Actually I'm trying to add an analog input to an existing analog I/O module ...yes It's 1771-IFE Module in Plc 5/25

hi everyone I have a pressure transmitter which is reading 0 600 bar (0 to 10 voltage) could u please tell me how to make the complete configuration on the program.I'm using plc5 with rslogix. Thanks

HI 4 all While I'm trying to upload from PLC5 I get the error: Upload error Command cmd 0xf , fnc 0x69 Ext sts=0x07 illegal size Section=? , File=368 then I can't go online.

thank you very much for your help

HI I'm using PlC5/20 when I click on setup screen on the BTR block (to view the analog input configuration) i find the following message: No modules exist in the IOconfiguration for this R/G/M however the analog input signals is running properly....i just want enter the setup screen for configuration.

Just try to disable com1 then restart the pc then enable com1 again and try to use rslinx again.

thank you for your reply....but i need an information on how to use them with wonderware and which servers/driver from wonderware i should need.

Hello everybody Can you tell me how to communicate Allen bradley plc5/30 with Pc by DH+ to run an HMI on that PC through an OPC? also,what about the wonderware..which drivers i should need?