DL405 Frequently Asked Questions
DL405 Frequently Asked Questions
Use "Ctrl-F" to search for specific words in this FAQ.
| Question: How do I reset my processor back to factory defaults? |
| Answer: Resetting the processor to factory defaults is a two step process. First clear the processor memory by PLC>CLEAR PLC MEMORY. Next initialize the scratchpad by PLC>SETUP>INITIALIZE SCRATCHPAD. Be aware that initializing the scratchpad will reset the system V-memory to defaults. System V-memory contains parameters such as retentive ranges, DV-1000 setup parameters, etc. |
| FAQ ID: 131 |
| Question: Why can I not get any Control Output from my PID loop? |
| Answer: Most likely you haven't entered a high limit for your Control Output in the PID setup. The default is 0 and the maximum is 4095 binary. Your must enter something in this field (Word+31) from the PID setup or from ladder. You should also check your Control Output word (Word+5) to see if you are actually getting Control Output. If this value is changing then make sure you are writing this value to the physical output device. This will most likely be an analog card or Time-Proportioning ladder for a discrete output point. |
| FAQ ID: 132 |
| Question: Why does my Setpoint Value change in my PID loop when I go from Manual to Auto from the PID view or ladder? |
| Answer: You are probably in Bumpless Transfer Mode 1. In this mode, the Setpoint Value is forced to the Process Value on a manual to auto transition. You should be using Bumpless Transfer Mode 2 if you do not want this to occur. This is covered in the Bumpless Transfer section of the PID chapter in your User Manual. |
| FAQ ID: 133 |
| Question: Which DL405 CPUs support Manual Addressing capabilities in local and local expansion bases? |
| Answer: The D4-440 and D4-450 CPUs. The D4-430 is Automatic Addressing only in the local and the local expansion bases. |
| FAQ ID: 134 |
| Question: Which protocol do I choose for communication to the RS-232 port of a Slice I/O slave? |
| Answer: Use K-Sequence protocol for communications to the RS-232 port of any Slice I/O slave. |
| FAQ ID: 135 |
| Question: Can the DL405 use Modbus protocol? |
| Answer: The D4-450 can use Modbus on Port 1 or Port 3 as Master or Slave. The D4-430 and the D4-440 can be a Modbus Master by using the F4-MAS-MB or Slave by using the F4-SLV-MB. |
| FAQ ID: 136 |
| Question: What is the accuracy of the PLC real-time clock? |
| Answer: D4-430: No clock/calendar feature D4-440: +/- 1 minute per month D4-450: +/- 1 minute per month |
| FAQ ID: 137 |
| Question: Is there a limitation on the number of High Speed Counters you can install with the DL-430 CPU? |
| Answer: Yes, the number of High Speed Counters you can install is 8. They cannot be installed in a remote base. |
| FAQ ID: 138 |
| Question: What is the torque specification for the terminal blocks on the DL405 modules? |
| Answer: 0.9 +/- 0.1 Nm (0.062 +/- 0.007 lb-ft) |
| FAQ ID: 139 |
| Question: Will the D4-RAM-1 or the D4-UV-1 work with the TI-435? |
| Answer: Yes, both of these cartridges will work with the TI-435. |
| FAQ ID: 140 |
| Question: Does the D4-RM have to be at the end of the chain or can it be wired in the chain (i.e., with slaves at each end)? |
| Answer: The D4-RM does need to be at one end of the physical connection chain. A termination resistor is also required here and at the last slave (which is added by jumpering T to 1). |
| FAQ ID: 141 |
| Question: How often should I change the backup battery? |
| Answer: All of the units have an indicator that flashes when the battery is getting low. The typical life of the battery in these units is 5 years, but the battery should be checked every six months. |
| FAQ ID: 142 |
| Question: Does the DL405 series support DNP 3.0 protocol? |
| Answer: At this time, it does not. |
| FAQ ID: 143 |
| Question: How would we check this PLC to make sure that it is calibrated? |
| Answer: Our PLCs do not require calibration. |
| FAQ ID: 144 |
| Question: How do I do ASCII out with a D4-440? |
| Answer: You must use a coprocessor module. |
| FAQ ID: 145 |
| Question: Can the D4-DCM work in DirectNET ASCII mode in peer-to-peer setup? |
| Answer: No. The D4-DCM cannot use DirectNET ASCII in peer-to-peer mode. |
| FAQ ID: 147 |
| Question: Is there an "equal to" command for the D4-430 CPU? |
| Answer: Yes: F7 contacts, comparative, equal to. |
| FAQ ID: 148 |
| Question: Are the comm port settings and retentive memory settings stored on the memory cartridge? |
| Answer: Yes. |
| FAQ ID: 149 |
| Question: Can you power up and program a DL405 CPU while disconnected from the backplane? |
| Answer: Yes. |
| FAQ ID: 150 |
| Question: Does the D4-450 UV prom need the D4-HPP to code? |
| Answer: Yes it does since it uses an AUX function. |
| FAQ ID: 151 |
| Question: What is the current rating on a D4-450DC-1 cpu? |
| Answer: It is 3100ma, same as the AC powered unit. |
| FAQ ID: 152 |
| Question: Do you offer precision resistors? |
| Answer: At this time we do not. |
| FAQ ID: 153 |
| Question: What is standard current draw on the D4-450 CPU @110VAC? |
| Answer: Approx 0.45 amps. We suggest a 0.75 amp slow blow fuse. |
| FAQ ID: 154 |
| Question: Is there a 24vdc-powered EBC for 405 series? |
| Answer: No, only 110/220VAC. Only expansion modules and D4-440 and D4-450 CPU’s are designed in the 24vdc market. |
| FAQ ID: 155 |
| Question: What are the threshold voltages on the D4-HSC? |
| Answer: 4.75 v - on voltage 2 v - off |
| FAQ ID: 156 |
| Question: What is the part # for spare terminal blocks for F4-08TRS-1? |
| Answer: D4-8IOCON. |
| FAQ ID: 333 |
| Question: Can you common the CA and CB on the D4-16ND2F module? |
| Answer: Yes. |
| FAQ ID: 334 |
| Question: Do the DL405 PLCs have Ethernet onboard? |
| Answer: No, you need to add an H4-ECOM. |
| FAQ ID: 335 |
| Question: Is there a CPU that can handle a square root? |
| Answer: The D4-450 can. |
| FAQ ID: 396 |
| Question: Will any port on the D4-450 work for firmware upgrade? |
| Answer: Only port one. |
| FAQ ID: 397 |
| Question: Is the TI-435 the same as the D4-440? |
| Answer: Yes, the D4-440 is a direct replacement. |
| FAQ ID: 398 |
| Question: Can I run remotes out of sequence, i.e., #1, #3, #6, and #2? |
| Answer: Although we suggest you to keep in sequence, you are allowed to do this using the D4-450. You will need to address each slave. |
| FAQ ID: 399 |
| Question: Can an I/O connector be connected to a D4-FILL module so wiring for a future module can be in place? |
| Answer: Yes, the D4-FILL does have the retaining nuts in place to attach the I/O connector. |
| FAQ ID: 400 |
| Question: Will your H4-EBC work with Labview? |
| Answer: Yes, when used with our KepDirect EBC Server. KepDirect can provide an OPC interface for LabView. |
| FAQ ID: 401 |
| Question: I forgot my password, what are my options? |
| Answer: Once you have contacted Tech Support, someone will request that you send in your CPU to his or her attention. The program inside the CPU will be lost and irretrievable when we clear the password. If possible, save your program before sending in your unit. |
| FAQ ID: 402 |
| Question: Where can I obtain the most current firmware for my CPU? |
| Answer: Go to the following links on our website to check for availability of firmware. Technical Support / Firmware Upgrades / Firmware Only. |
| FAQ ID: 403 |
| Question: Can the D4-430 support K-sequence out of both comm ports at the same time? |
| Answer: No, If you want to use the both com ports at the same time, port 1 must be K-sequence & port 2 must be DirectNet. If port 1 is not used, port 2 can support K-sequence. |
| FAQ ID: 430 |
| Question: Can I use an analog card in a DL 405 remote set up? |
| Answer: Yes, make sure you allocate proper I/O in the setup. |
| FAQ ID: 469 |
| Question: I have an older D4-440 CPU, will it work with the H4-ECOM? |
| Answer: Yes. |
| FAQ ID: 470 |
| Question: Can the DL 405 system be mounted vertical? |
| Answer: No. The base must be mounted horizontally to provide proper ventilation. |
| FAQ ID: 471 |
| Question: On the D4-RSDC, Is the power supply isolated from ground or is it floating? |
| Answer: It is isolated with a transformer. |
| FAQ ID: 599 |
| Question: Do you offer a DL405 slice slave that has AC I/O? |
| Answer: Not at this time. |
| FAQ ID: 601 |
| Question: Can I have multiple ECOMS in a DL405 base? |
| Answer: Yes, you can have up to 8. |
| FAQ ID: 628 |
| Question: Will TI software work on a D4-440? |
| Answer: Yes, but we do not support it. |
| FAQ ID: 629 |
| Question: Can you set up the High Speed Interface Card in a remote unit? |
| Answer: No, it must be set up in a local base. |
| FAQ ID: 664 |
| Question: Can the D4-HSC handle differential counting? |
| Answer: No. |
| FAQ ID: 704 |
| Question: Using the D4-450, do timers self reset if left timing? |
| Answer: No, they go to a max value and stop. |
| FAQ ID: 705 |
| Question: Does the D4-450 support autotune? |
| Answer: Autotune feature is available with firmware v1.90 or later. Also need DS32 build 58 or 62. |
| FAQ ID: 706 |
| Question: Q: What is the wire size in the D4-IOCBL-1? |
| Answer: A: The diameter is 0.38 mm, or slightly smaller than 26 AWG. |
| FAQ ID: 789 |
| Question: Q: Can a D4-INT fire a subroutine all the time the while the inputs are on? |
| Answer: A: NO |
| FAQ ID: 790 |
| Question: Q: What is agency approvals on D4-450? |
| Answer: A: UL, CUL, CE. |
| FAQ ID: 791 |
| Question: Q: Is a D4-INT manually addressable? |
| Answer: A: No. |
| FAQ ID: 792 |
| Question: Q: Do we offer a 2 channel analog input for the D4-450? |
| Answer: A: No, 4 channels is the least amount of channels we offer. |
| FAQ ID: 793 |
| Question: What purpose does the battery serve in the H4-EBC? |
| Answer: The battery in the 405 EBC actually backs up all of the RAM in the box, but the primary purpose for this is to preserve the blocks of simulated V-Memory and C-Memory that is used with the built-in serial K-sequence handler. |
| FAQ ID: 906 |
| Question: I tried everything to establish communications between my PC and the CPU with no luck. I do have the power LED on and I am powering the processor with 120 VAC. I have confirmed I have the correct communications cable and the latest DirectSOFT32 programming software. What else can I check? |
| Answer: If you are powering the processor power supply with 120 VAC, make sure you have installed the shorting link on the bottom two terminals for 100-120 VAC operation. Clich here for the Directsoft Troubleshooting manual. |
| FAQ ID: 934 |
| Question: What is the SCCR rating for the DL405 PLCs? |
| Answer: Our PLCs are not power circuit components. The SCCR is not required for them. Please refer to UL508 177.1 and UL508A SB4.1 for details. UL508 177.1 defines what the PLC is and UL508A SB4.1 covers the standard for the SCCR. |
| FAQ ID: 1197 |
| Question: Can I change the backup battery with power applied to my DL405 CPU? |
| Answer: Yes. Open the front cover of the CPU and replace the battery. |
| FAQ ID: 1204 |