AutomationDirect LogoDL05 Frequently Asked Questions




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Question: Does the DL05 support Modbus protocol?
Answer: Yes, the DL05 supports Modbus RTU protocol as a slave on port 1 and as a master or slave on port 2.
FAQ ID: 4

Question: Does the DL05 work with wireless modems?
Answer: There are two options for using wireless communications with the DL05: Serial and Ethernet. With the first option, either port of the DL05 will work with a wireless serial modem as long as the modem does not require an RTS and CTS signal for handshaking. AutomationDirect offers wireless Serial modems that are compatible with the DL05. The other option is to place an H0-ECOM or H0-ECOM100 Ethernet Communications Module in the option slot of the DL05 unit. AutomationDirect offers wireless Ethernet modems that can be used with the Ethernet modules.
FAQ ID: 5

Question: Can the DL05 communicate with other DirectLogic PLCs?
Answer: Yes, the DL05 can communicate to all of the other DirectLogic PLCs including the DL06, DL105, DL205, DL305 and DL405 families. The DL05 can be a serial master or slave to a DL06 (DirectNet or Modbus RTU), D2-240 (DirectNet)D2-250-1(DirectNet or Modbus RTU), D2-260 (DirectNet or Modbus RTU), D3-340 (DirectNet), D3-350 (DirectNet or Modbus RTU), D4-440 (DirectNet), and D4-450 (DirectNet or Modbus RTU). It can also be an Ethernet master or slave when using an optional Ethernet Communications Module in the option slot of the DL05. An RS232 to RS422/485 converter will be required for communications wiring.
FAQ ID: 6

Question: Does the DL05 support peer-to-peer communications?
Answer: Yes, the DL05 supports peer-to-peer using Ethernet communications only, which requires one of the optional H0-ECOM or H0-ECOM100 modules.
FAQ ID: 8

Question: To connect a modem with a DL05, do I need to jump RTS and CTS on the PLC side?
Answer: There is not a CTS pin on the DL05. This connection is the same as the connection for a D2-240 bottom port connection. A diagram for that can be found here.
FAQ ID: 10

Question: Does the DL05 support DNP 3.0 protocol?
Answer: At this time, it does not.
FAQ ID: 14

Question: What is the smallest PLC unit that can handle Modbus RTU?
Answer: The DL05
FAQ ID: 16

Question: Will the DL05 do full or half duplex?
Answer: Half duplex
FAQ ID: 17

Question: Can you print from a DL05?
Answer: Yes - ASCII out on a serial printer only
FAQ ID: 18

Question: Can the DL05 do ASCII out?
Answer: Yes, via the “print instruction”.
FAQ ID: 20

Question: Can the EBC communicate to the DL05 through a serial port?
Answer: No, it can't. The serial port on the EBC is for simple serial communication only. It does not support the required protocols to communicate to a DL-05.
FAQ ID: 22

Question: Do you offer precision resistors?
Answer: At this time we do not
FAQ ID: 25

Question: Can the DL05 do printing and communication on same port at same time?
Answer: No, it cannot.
FAQ ID: 26

Question: Can I make 2 D0-05 slaves on a multidrop communicate to each other?
Answer: No, the data must be routed by the master.
FAQ ID: 318

Question: Can port 1 on the DL05 be a master?
Answer: No.
FAQ ID: 549

Question: Is the Directnet protocol the same between the DL05 and the DL205?
Answer: Yes.
FAQ ID: 585

Question: Does the DL05 have Ethernet capabilities?
Answer: Yes, adding the option module H0-ECOM.
FAQ ID: 588

Question: What is the current rating for the 5 volts of the communication port on the DL05 PLC?
Answer: 200 milliamps.
FAQ ID: 750

Question: Can I read and write data from a second DL05?
Answer: a. Yes. You will need to configure one DL05 as the master. The master will use RX and WX instructions to read/write data from the slave units. You can use Modbus or Directnet protocols for this purpose. Either protocol supports multi-drop networks. The following link is to a Master and a Slave ladder example for use with a DL05: (Click here for ladder example).
b. Chapter 4 of the DL05 user manual shows: (Click here for Chapter 4).
i. Wiring diagrams for a master-slave configuration using RS232 on page 33.
ii. Shows how to wire an RS422 network for a master (PC or PLC) to multiple slaves on page 34.
iii. Rather than using the F2-UNICON or FA-ISONET depicted in that chapter, use the FA-ISOCON to convert RS-232 to RS-422. The DL05 port 2 only supports RS-232.
FAQ ID: 1167

Question: I am not able to force IO bits online. What am I doing wrong?
Answer: a. Check the link setup and verify your link is configured for K-sequence. If it was configured for DirectNet, you will not be able to force bits. If you are using a link with an ECOM module, make sure you check the protocol selected for the link is ECOM.
FAQ ID: 1168