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Seneca Z-LINK2-LO User Manual

Modbus gateway – remote io radio and repeater with lora technology
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USER MANUAL
Modbus Gateway – Remote IO radio and repeater
This document is the property of SENECA srl. Unauthorized duplication and reproduction (even partial) is prohibited. The
content of this document refers to the described products and technologies. Despite the continuous effort to achieve
perfection, all the technical data contained in this document can be modified or added for technical and commercial needs;
it is impossible to completely eliminate discrepancies and inconsistencies. However, the content of this documentation is
subject to periodic review. For any question, do not hesitate to contact our structure or write to the e-mail addresses
indicated above.
Z-LINK2-LO
with Lora technology
SENECA s.r.l.
Via Austria, 26 - 35127 - PADOVA - ITALY
Tel. +39.049.8705355 - 8705359 Fax. +39.049.8706287
Website:
www.seneca.it
Technical service:
supporto@seneca.it
Commercial information:
(Other)
(IT),
support@seneca.it
commerciale@seneca.it
Page 1
(Other)
(IT),
sales@seneca.it

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Summary of Contents for Seneca Z-LINK2-LO

  • Page 1 (Other) This document is the property of SENECA srl. Unauthorized duplication and reproduction (even partial) is prohibited. The content of this document refers to the described products and technologies. Despite the continuous effort to achieve perfection, all the technical data contained in this document can be modified or added for technical and commercial needs;...
  • Page 2 USER MANUAL - Z-LINK2-LO Date Revision Note Author Code 11/04/2023 1 First edition MI00610-1 11/04/2023 1 Translated into MI00610-2 English...
  • Page 3 2. Z-LINK2-LO MODALITÀ BRIDGE ................8 IMPOSTAZIONE DI Z-LINK2-LO COME MODALITÀ “BRIDGE” ........11 3. Z-LINK2-LO "MODALITÀ I/O REMOTO" ..............14 3.1. IMPOSTAZIONE DI Z-LINK2-LO COME "MODALITÀ I/O REMOTO" ....16 3.1.1. IMPOSTAZIONE DELLO Z-LINK2-LO COME "REMOTE I/O MASTER MODBUS"......................... 17 3.1.2.
  • Page 4 Seneca Z-LINK2-LO ATTENTION! IN NO EVENT, SHALL SENECA S.R.L. OR ITS SUPPLIERS BE LIABLE FOR LOSS OF REGISTRATION DATA/INCOME OR FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES RESULTING FROM NEGLIGENCE OR THE IMPROPER OR IRRESPONSIBLE USE OF Z-LINK2-LO, EVEN IF SENECA IS AWARE OF SUCH POSSIBLE DAMAGES.
  • Page 5 The Z-LINK2-LO device is designed to transparently transfer serial packets over a wireless network. The simplified outline of Z-LINK2-LO is: The Z-LINK2-LO USB port can only be used for programming Z-LINK2-LO from a Windows™ PC with the Easy Setup software.
  • Page 6 USER MANUAL - Z-LINK2-LO The figure shows a typical application of the Z-LINK2-LO device in "Bridge mode" within a ModBUS RTU network: In this mode the Modbus fieldbus is transparently connected "over the air". Note that the Z-LINK2-LO in “Bridge” mode does not act as Modbus Master, an external Modbus Master...
  • Page 7 A fault condition can be used for safety requirements. Note that an external Modbus RTU Master device is not required in this mode because the Z-LINK2-LO also acts as a Modbus RTU Master on the bus.

  • Page 8: Repeater Function

    USER MANUAL - Z-LINK2-LO 1.1. REPEATER FUNCTION In each of the previous modes it is possible to activate the repeater function. When a Z-LINK2-LO works as a repeater, the received radio signal is also retransmitted in order to increase the signal range.
  • Page 9 USER MANUAL - Z-LINK2-LO Furthermore, it is possible to connect 1 Modbus master without local Modbus slaves (point-to-multipoint): It is also possible to connect Modbus Slaves on the local Modbus master bus:...
  • Page 10 USER MANUAL - Z-LINK2-LO If a Z-LINK2-LO is not easily accessible, it is possible to configure one as a "repeater", note that Modbus RTU Slave devices can also be connected to the repeater:...
  • Page 11 USER MANUAL - Z-LINK2-LO SETTING Z-LINK2-LO AS “BRIDGE” MODE To configure the device, use the Easy Setup software which can be downloaded from the Seneca website in the Z-LINK2-LO section. ATTENTION! Before starting any configuration operation it is necessary to TURN OFF the Master Radio device...
  • Page 12 USER MANUAL - Z-LINK2-LO ONLY ONE Z-LINK2-LO CAN BE CONFIGURED AS "BRIDGE MASTER", ALL OTHERS MUST BE CONFIGURED AS "BRIDGE SLAVES". 4) Now that the local bus configuration has been completed, we need to configure the radio: It is possible to choose if the device is of the repeater type, the network key and if the radio packets are encrypted.
  • Page 13 USER MANUAL - Z-LINK2-LO 5) Once the configuration has been sent to the Z-LINK2-LO, turn off the Z-LINK2- LO and set the dip switches: For Z-LINK2-LO "Bridge Master": For Z-LINK2-LO "Bridge Slave": 6) Now you can connect Modbus devices via the Rs485 or Rs232 port.
  • Page 14 USER MANUAL - Z-LINK2-LO 3. Z-LINK2-LO "REMOTE I/O MODE” The Z-LINK2-LO can be used to copy inputs to remote outputs, for example it is possible to shift alarm indications or retransmit an analogue measurement without connecting cables: Using Seneca I/O Modbus RTU slave modules, the above example can be achieved with:...
  • Page 15 USER MANUAL - Z-LINK2-LO Digital inputs can be negated before retransmission while analogue measurements can be scaled before retransmission. The maximum number of digital inputs supported is 20. The maximum number of analogue inputs/outputs supported is 50. On the output side a fault condition can be triggered: if there is a fault on the inputs, the outputs can be switched into a programmed safety condition.
  • Page 16 USER MANUAL - Z-LINK2-LO 3.1. SETTING THE Z-LINK2-LO AS "REMOTE I/O MODE” To configure the device, use the Easy Setup software which can be downloaded from the Seneca website in the Z-LINK2-LO section. ATTENTION! Before starting any configuration operation it is necessary to TURN OFF the Master Radio device...
  • Page 17 1) In the Modbus serial bus configuration section, select the baud rate of the Modbus Master and the working mode: The Z-LINK2-LO acting as Modbus Master is called "Remote I/O Modbus Master". ATTENTION! ONLY ONE Z-LINK2-LO CAN BE CONFIGURED AS "MODBUS MASTER", ALL OTHERS MUST BE CONFIGURED AS "MODBUS SLAVEs".
  • Page 18 There is no maximum number of parallel networks, but to obtain acceptable performance, the number of 8 networks must not be exceeded. ATTENTION! TWO Z-LINK2-LO WITH DIFFERENT NETWORK KEYS CANNOT BE INSERTED INTO THE SAME NETWORK BECAUSE THEY ARE NOT VISIBLE TO EACH OTHER.
  • Page 19 USER MANUAL - Z-LINK2-LO 3) Now we need to configure the Modbus Master parameters: Response Timeout is the time that the master waits to declare a communication timeout (the slave did not respond) Delay Between Requests is the pause between one query from the master and the next...
  • Page 20 USER MANUAL - Z-LINK2-LO 4) Now let's configure the digital inputs that are to be retransmitted to the digital outputs: Press "Add new" and select from the internal Seneca database the digital input that must be retransmitted to the output:...
  • Page 21 USER MANUAL - Z-LINK2-LO Then select the digital output that retransmits the digital input: Now select whether you want digital signal processing and what the output value will be if the digital input fails:...
  • Page 22 USER MANUAL - Z-LINK2-LO After complete setup, you will see something like this:...
  • Page 23 USER MANUAL - Z-LINK2-LO 5) Now let's configure the analogue inputs that are to be retransmitted to the analogue outputs: Press "Add new" and select from the internal Seneca database the digital input that must be retransmitted to the output:...
  • Page 24 USER MANUAL - Z-LINK2-LO Now select whether you want analogue signal processing and what the output value will be if the digital input fails: So if you want to scale an input of 4000-20000uA to an output of 0-10000mV you would enter:...
  • Page 25 USER MANUAL - Z-LINK2-LO After complete setup, you will see something like this: 6) Once the configuration has been sent to the Z-LINK2-LO, turn off the device and set the dip switches: For Z-LINK2-LO "Remote Master I/O": 7) Now you can connect Modbus devices via the Rs485 or Rs232 port.
  • Page 26 1) In the Modbus serial bus configuration section, select the bus baud rate and working mode: The Z-LINK2-LO acting as Modbus Slave is called "Remote I/O Modbus Slave". ATTENTION! ONLY ONE Z-LINK2-LO CAN BE CONFIGURED AS "REMOTE I/O MASTER", ALL OTHERS MUST BE CONFIGURED AS "REMOTE I/O SLAVEs".
  • Page 27 TWO Z-LINK2-LOs WITH DIFFERENT NETWORK KEYS CANNOT BE INSERTED INTO THE SAME NETWORK BECAUSE THEY ARE NOT VISIBLE TO EACH OTHER. 3) Once the configuration has been sent to the Z-LINK2-LO, turn off the Z-LINK2-LO and set the dip switches: For Z-LINK2-LO "Remote I/O Slave":...

  • Page 28: Modbus Rtu Protocol

    USER MANUAL - Z-LINK2-LO The RS232 port is available via the 4-5-6 terminal screw ATTENTION! -On an RS485 bus it is possible to connect a maximum number of devices which depends on the manufacturer (typically 32). -Only 1 device can be connected on one RS232 port 5) Now program all the other Z-LINK2-LOs as "Remote I/O Slaves".

  • Page 29: Firmware Update

    Once the firmware update has started, do not turn off the device until the procedure is complete. Turn on the Z-LINK2-LO device and connect it to the PC using the USB port. In the configuration menu click on "Software Update": By pressing the "Load software from file"...
  • Page 30 USER MANUAL - Z-LINK2-LO 6. OPERATION DIAGNOSTICS THROUGH LEDS The device has 3 LEDs: L1 takes the name of RF-RX/BUS L2 takes the name of RF-TX L4 takes the name of RUN 6.1. OPERATION OF THE LEDS ACCORDING TO THE OPERATING MODE 6.1.1.

  • Page 31: Troubleshooting

    PROBLEM SOLUTION On the Master side, LEDs L1 and L2 flash, but none of -The Z-LINK2-LO slave side is out of radio range, install the LEDs flash on the Slave side. the Z-LINK2-LO Slave closer to the Z-LINK2-LO Master. Insert a Z-LINK2-LO in repeater mode halfway.