adccommunitymod (AutomationDirect) asked a question.
Created Date: July 09,2008
Created By: JWG
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I am using two F0-08ADH-1 cards in a D0-06DD1-D unit. I am monitoring 12 sensors reading fluidlevel in 12 separate tubes. the sensors are reading 4mA at the lowest level and 20A at the highest level. I am wanting to see this range on a C-More 15 touch screen. In February I used one card and a similar D05 unit to monitor 8 tubes. At that time I had outside help doing the programming and we used the i-boxs. Now I was told by tech support that this won't work,am using 16 bit and the i-boxes are set up for 12. (I copied the original program and added the second card and set up for th 4 additonal sensors). I have tried to use the ladder logis as shown in the manual but I only get a steady reading. I plugged a multimeter into the sensor circuit and it reads the 4 to 20 range. my ladder looks like: FIRST RUNG LD K800 OUT V700 LDA O2000 OUT V701 SECOND RUNG LD K100 OUT V3000 LD K65535 OUT V3002 THIRD RUNG LD V2000 MUL V3000 DIV V3002 OUT V2100 I only did enough to test the first sensor. what am i missing or doing wrong?
Created Date: July 09,2008
Created by: KPrice
JWG, check your instructions and the descriptions for each instruction. Your instruction, such as LD, MUL, DIV, OUT, are 4-digit BCD instructions. To use 5-digit BCD numbers, such as 65535, you need to use the Double instructions. These instructions can handle numbers larger than the 4-digit BCD, up to 8-digit BCD. I got caught on this many times, especially with the MUL. The MUL only uses the lower 16 bits of the accumulator. I go through and do each calculation by hand, and verify that the calculation and result are within the instructions limitations. The result of a calcualtion can use all 32-bits of the accumulator, but if the final result, the number you want to OUT, is larger than 4-digit BCD, then you need to use the double instructions. Hope this helps.
Created Date: July 09,2008
Created by: FACTSTech
If you are using the CMORE for displaying the "engineering units " DO NOT SCALE in ladder use the scaling tab on the CMORE. Use V2000 for channel 1, V2002 CH2, etc.
See http://www.automationdirect.com/static/manuals/d0optionsm/ch4.pdf
Created Date: July 10,2008
Created by: JWG
I deleted all but the first rung and have the last rung as end.
I am still not getting any movement on my display on the c-more. I have it set to monitor v2000 for channel one.
What should I have my scale set for on the c-more?
I have the data type as
BCD int 16. reading v2000.
I have the scale option checked and setthe point 1 plc value a 4 and the display value as 0, the point 2 plc value is 5535 (which is what hte data shows on the directsoft program for v2000) and the display set at 25.
what is wrong????
Created Date: July 10,2008
Created by: FACTSTech
The module is 16 bit 0-65535 (v2000/2001- 32 bit)
Set scaling tab: V2000
BCD Integer 32 and display 0 - 25 PSI? PLC 0 - 65535
Created Date: July 14,2008
Created by: dieselvette
JWG,
Check here also - http://forum1.automationdirect.com/board/Forum1/HTML/003267.html - I recommend wiping the memory when doing the changes, although I still don't know why that worked for me.
Created Date: July 09,2008
Created by: JWG
I am using two F0-08ADH-1 cards in a D0-06DD1-D unit. I am monitoring 12 sensors reading fluidlevel in 12 separate tubes. the sensors are reading 4mA at the lowest level and 20A at the highest level. I am wanting to see this range on a C-More 15 touch screen. In February I used one card and a similar D05 unit to monitor 8 tubes. At that time I had outside help doing the programming and we used the i-boxs. Now I was told by tech support that this won't work,am using 16 bit and the i-boxes are set up for 12. (I copied the original program and added the second card and set up for th 4 additonal sensors).
I have tried to use the ladder logis as shown in the manual but I only get a steady reading. I plugged a multimeter into the sensor circuit and it reads the 4 to 20 range.
my ladder looks like: FIRST RUNG
LD
K800
OUT
V700
LDA
O2000
OUT
V701
SECOND RUNG
LD
K100
OUT V3000
LD
K65535
OUT
V3002
THIRD RUNG
LD
V2000
MUL
V3000
DIV
V3002
OUT
V2100
I only did enough to test the first sensor.
what am i missing or doing wrong?