DL305 - DL350 CPU Frequently Asked Questions
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Question:
I'm doing REAL number math and OUTing the value to a register with my D3-350. When I need that number it does not display correctly. What's wrong?
Answer
The REAL number PLC's use the IEEE 32 bit floating point format. You must use an OUTD to store the result of a REAL number math operation into V-memory.
FAQ ID: 97
Question:
I'm upgrading my old DL305 systems to the new D3-350. How will my programs be handled?
Answer
The D3-330 and D3-340 use the old 305 instruction set. This is early to mid-80's technology. The new D3-350 uses the new 205/405 memory mapping and instruction set. Unfortunately the only way to convert is to rewrite the program. PLC Direct technical support does not offer this service but we can refer you to integrators who can rewrite your code if you do not wish to do it yourself.
FAQ ID: 99
Question:
Does the D3-350 support ASCII/BASIC modules?
Answer
The D3-350 CPU does not support the ASCII/BASIC modules. The D3-330 or D3-340 do.
FAQ ID: 115
Question:
Can you use an OP-CCBL to program a D3-350 CPU?
Answer
No...6;2-1 are jumpered together.
FAQ ID: 121
Question:
Can I force I/O points in the D3-350?
Answer
I/O points in the D3-350 firmware version 1.15 or newer can be "forced" using bit override.
FAQ ID: 124
Question:
What modules does the D3-350 not support?
Answer
D3-HSC, D3-232-DCU, D3-422-DCU, D3-HP, D3-HPP, F3-AB64,
F3-AB64-R, F3-AB64-T, F3-AB128, F3-AB128-R, F3-AB128-T
FAQ ID: 352
Question:
Will the D3-350 support the D3-04AD?
Answer
Yes, but only by using the multiplex method. You cannot use the pointer method and the PV direct access for the PID control because of the slow response of this module.
FAQ ID: 353
Question:
Will the D3-350 support the D3-02DA?
Answer
Yes, but only by using the multiplex method. You cannot use the pointer method and the control output direct access for the PID control because this module has only 8 bit resolution.
FAQ ID: 354
Question:
Where can I obtain the most current firmware for my CPU?
Answer
Go to Software & Firmware Downloads to check for the latest firmware file.
FAQ ID: 395
Question:
Will D3-HSC work with the D3-350?
Answer
No it will not.
FAQ ID: 663
Question:
Does port 2 of the D3-350 have 5vdc?
Answer
No.
FAQ ID: 702
Question:
How do I use a variable as a timer preset?
Answer
In your timer box where you are currently typing 'Kxxx' for the preset you would put a V memory address such as V2000. Make sure that this address is only used for this purpose. Now open a data view and type in V2000. You would use this same V memory address for every timer that you want to have the same value.
Click the yellow E button with the red circle and slash in the upper left of the data view window to enable edits. Now you should have a column titled edits on the right of the V2000 you typed in. Enter your value in this column next to V2000 and press the middle of the three buttons at the top right of the data view.
Please note that you can use other V memory addresses than V2000. The full list of available addresses is available in the PLC -> Memory map menu item. Also you can find the list of available memory in Chapter 3 (or 4 depending on the PLC model) of the User manual.
FAQ ID: 1341