CThornton
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Everything posted by CThornton
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Hi All, I have an Allen-Bradley 1762-IF2OF2 Module which I am using for a voltage output. The range of my output is scaled to 0-6.4V (0-19968 bits) from a 0 - 700°C input. Currently I am receiving an output voltage 0-0.458V which is way smaller than my 0-6.4V required output. Has anyone seen something like this? I have added some images to help explain how I've set it up. Any help would be greatly appreciated. Thanks C
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Voltage Output Greatly Reduced
CThornton replied to CThornton's topic in Allen Bradley / Rockwell Automation
I forgot to mention. My output is on V out 0 which i have addressed at O:5.1 (slot 5). I'm not sure if this is correct. -
Hi All, I am encountering an issue with my Allen Bradley MLX 1200 processor when trying to use the integrated PLC I/O channels I:0.4 - I:0.13 I am getting the error "Unconfigured I/O Address Used". I'm using RSLogix 500 to program the PLC. I have tried to configure the I/O however it doesn't seem to allow me to 'Activate/Configure' I/O past I:0.3. Has anyone seen something like this before? Thanks CThornton
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Unconfigured I/O Address Used
CThornton replied to CThornton's topic in Allen Bradley / Rockwell Automation
I've had a eureka moment! I was trying to add a discrete input signal to a register which, now thinking about it, obviously wouldn't work. I have replaced the discrete signal with analogue signals which are introduced earlier in the ladder logic. This has corrected the issue. Thanks for all the help guys. C -
Unconfigured I/O Address Used
CThornton replied to CThornton's topic in Allen Bradley / Rockwell Automation
I've added the whole PLC file and a PDF version MLX1200 - PLC 1 NO OFFSET.RSS PLC 1 PDF.pdf -
Unconfigured I/O Address Used
CThornton replied to CThornton's topic in Allen Bradley / Rockwell Automation
Here's the instruction I'm trying to type it into. It works for I:0.0-I:0.3 however past that it doesn't. I've attached 2 rungs, 1 working and 1 which isn't. -
Unconfigured I/O Address Used
CThornton replied to CThornton's topic in Allen Bradley / Rockwell Automation
If I enter the address as I:0.0/0 I then get the error "Address must be specified to word level". -
Unconfigured I/O Address Used
CThornton replied to CThornton's topic in Allen Bradley / Rockwell Automation
I do have expansion I/O however I'm maxed out. I'm using the 1762-L24BXB which states that it has Input channels 0-13 and outputs 0-9. I've uploaded the image from the manual which shows the channel config. Thanks -
RSLogix Micro ERROR:Address must be specified to the word level!
CThornton posted a topic in Allen Bradley / Rockwell Automation
Hi, All! I am very new to PLCs and I am currently writing ladder logic for an Allen bradley MLX1200. I have a number of inputs which i have addressed in the format: I:1.0/1 etc. which should equate to I:Slot.Word/Terminal. I have checked the SLC 500 Instruction Set document which has informed me that this format should be structured correctly however I still receive the error message "ERROR: Address must be specified to the word level!" Can anyone see where I am going wrong? For reference Slot 1 is a 4-Channel Thermocouple Input Module (1762-IT4). Any help would be greatly appreciated. Thanks C- 1 reply
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