Seneca Z-LINK1 User manual

ENGLISH 1/8
MI002875-E
Z-LINK1
Z-LINK1
SENECA
S
Radio communication device
EN
EN
EN
EN
Installation
Manual
Installation
Manual
Installation
Manual
Installation
Manual
Contents:
- General features
- Technical specifications
- Installation and connections
- Functioning
- Programming
- LEDs signallings
- Countries in which the Z-LINK1 can be
used
SENECA s.r.l.
Via Austria, 26 - 35127 - PADOVA - ITALY
Tel. [phone] - Fax [phone]
For manual and configuration softwares, see www.seneca.it
This document is property of SENECA srl. Duplication and reprodution are forbidden, if not authorized.
Contents of the present documentation refers to products and technologies described in it. All technical data
contained in the document may be modified without prior notice Content of this documentation is subject to
periodical revision.

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GENERAL FEATURES
TECHNICAL SPECIFICATIONS
Communication
MI002875-E
•Power supply and serial connection wiring facilitated by means of a bus that can be
used in the DIN guide.
•Functioning modality is configurable by DIP-switch.
•RS485 serial communication with protocol MODBUS-RTU
•High immunity to the RF disturbs
•Transparent to the ModBUS protocol
•Isolation between communication and power supply: 1500 Vac.
•It is possible to implement MESH networks
•BRIDGE or REMOTE I/O functioning
The Z-LINK1 modules represent a communication systems for data acquisition and
transmission in the process control and industrial / civil automation. Based on an UHF
modem radio, Z-LINK1 is able to comunicate with Z-PC line modules through ModBUS
protocol. Z-LINK1 represents a new platform communication in radio frequency.
Interface :
ModBUS RTU protocol :
Delay between polls :
Timeout (master Modbus) :
Frequency band :
Modulation :
Class of radio module :
Performance in free field
conditions :
Radiated power:
Communication :
- RS232
- RS485
- Half-duplex functioning module (the communication
between devices occurs in alternate way)
Yes
> 200 ms (to set in the master Modbus)
> maximum between all timeout values configured in
the Easy setup software
g3, attached 1 ERC 70-03 (869.4 MHz - 869.650 MHz)
GFSK
2
-3
400 m (with PER<10 @ 57.6 kbaud, with antenna
accessory ANT-MAG placed over 2 m from the soil)
20 mW
32 nodes
Electrical features
Power supply :
Consumption :
LED status
10..40 Vdc or 19..28 Vac (50..60 Hz)
1 W @ 12 Vdc (without radio communication)
1 W @ 24 Vdc (without radio communication)
1 W @ 24 Vdc (with radio communication)
- Power supply
- Data transmission via bus
- Data transmission via radio
- Test after installation

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MI002875-E
INSTALLATION AND CONNECTIONS
Standards:
Storage :
The Z-LINK1 complies with the following standards:
ETSI EN 300 220-2 V2.1.2 (2007-06)
ETSI EN 301 489-3 V1.4.1 (2002-08)
CEI EN 61010
It thus satisfies the basic requirements of directives:
Radio and telecommunications terminal equipment 99/5/EC
Electromagnetic compatibility 2004/108/EC
Low Voltage equipment 2006/95/EC
-25 °C..+85 °C
Functioning : 0..+55 °C
Connections :
2
-Removable screw terminals:conductors up to 2.5 mm
-RJ10 connector for RS232 serial port
-JACK stereo connector for programming
-SMA connector for antenna
-IDC10 connector for Seneca bus
Humidity : 20..85 % (without condensing)
Mounting: For DIN 46277 rail
Dimensions, weight : 100 x 112 x 17,5 mm, 200 g.
Case : PBT, black
Accessories : Cable: RJ10/DB9F (PM001420)
Directional antenna - 2.5 m - SMA (ANT-MAG)
Seneca bus accessories: Z-PC-DIN
Thermo-mechanical features
The module is designed to be installed in vertical position on a DIN 46277 rail. In order to
ensure optimum performance and the longest working life, the module(s) must be supplied
adequate ventilation and no raceways or other objects that obstruct the ventilation slots.
Never install modules above sources of heat; we recommend installation in the lower part of
the control panel.
Antenna
Power
supply
RS 232
IDC10
Screw term.
RS 485
IDC10
Screw
term.
RJ10
Screw
term.
1500Vac isolations
COM

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Bus connector for DIN rail
Z-PC-DINAL2-17,5 Accessory Use
MI002875-E
1
RS485 B
RS485 A
RS485 GND
Power supply
Power supply
IDC10
As it is illustrated in the next figure:
1) Insert the rear IDC10 connector
on a DIN rail free slot (the inserting
is univocal since the connectors
are polarized).
2) Tighten the locks placed at the
sides of the rear IDC10 connector
to fix the module.
In case of Z-PC-DINAL-2-17,5
accessory, the signals may be
provided by terminal blocks. The
figure shows the meaning of the
terminals and the position of the
DIP-switch (present on each DIN rail
supports listed on Accessories) for
network termination (not used in
case of Modbus network).
GNDSHLD: Shield to protect the
connection cables
( recommended).
In the figure the meaning of the
IDC10 connector pins is showed,
in the case the user decides to
provide the signals directly
through it.

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MI002875-E
Power supply and RS485 from screw terminals
There is RS485 communication in the
7, 8, 9 screw terminals as shown in the
following figure.
The electric connections for power
supply and RS485 can be made by
using either the terminals or the bus for
the Seneca DIN rail.
The default configuration for Z-LINK1 module: DIP-switches are in position 000000. DIP-
switch status defines the functioning modality and module radio communication
parameters.
In the following tables: box without circle means Dip-Switch=0 (OFF state); box with
circle means Dip-Switch=1 (ON state).
Default configuration
Dip-switch settings
The module Z-LINK1 has the RS232 communication port by RJ10 or screw terminals 4, 5, 6, 1
as shown in the following figure. The RJ10 port is the RS232 physical replica of the RS485
signal via radio.
1
JACK stereo 3.5 mm
DB9-F
GND Rx
Tx
Rx
Tx
GND
5
6
9
RS232 serial port for programming only
1
2
3
4
J1
4
3
2
1
4
5
6
1
TxD
RxD
not used
GND
TxD
REMOTE DEVICE

Rx
Z-LINK1
1
RxD

Tx 2
GND
=
not used
3
GND =
5(M2)
4(M2)
4
1(M1)
RS-232 from screw term.
SIGNAL RJ10 connector (J1)
10 ÷ 40 VDC
19 ÷ 28 VAC
(50..60 Hz)
2
3
7
8
9
B (-)
A (+)
GND
Rx
Tx
GND
The module has a Jack stereo
connector in order to connect its to
RS232-bus communication. The
frontal COM port is used to program
the Z-LINK1 only.
RS232 serial port from RJ10 or terminals

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Sharing of the network identifier
All Z-LINK1 devices are provided with the same network identifier (0xD0D0 = 53456), then the
operation of binding is already carried out (default: all Z-LINK1 devices are able to
communicate with each other).To create independent networks in the same covered area, it is
possible to separate networks logically, by modifying the network identifier of the affected
devices (using the software Easy Setup).
NOTE: at first start, radio communication between Z-LINK1 devices may take several
minutes to properly establishment because the Z-LINK1 devices must initialize
internally.
Z-LINK1 configuration
To install and configure each Z-LINK1 that belongs to a network, use the software Easy
setup.
Each Z-LINK1 can be configured as:
- BRIDGE: the Z-LINK1 has not the CPU enabled. To complete the configuration, set if the Z-
LINK1 is connected to the Modbus master (PLC, PC, etc...) and Modbus slaves (local bus), or
if the Z-LINK1 is only connected to Modbus slaves (local bus).
- REMOTE I/O: the Z-LINK1 has the CPU enabled. THE CPU COMMUNICATION
PARAMETERS (MODBUS MASTER THAT QUERIES MODBUS SLAVES) ARE THE
SAME OF INTERNAL RADIO MODULE. To complete the configuration, set if the Z-LINK1 is
the Modbus master. To complete the configuration of Z-LINK1, follow the procedure described
by the software Easy setup.
Missing of a slave device in a network of Z-LINK1
Assume a system consisting of: a network of Z-LINK1 devices with some Modbus slave
devices connected directly via bus and a PC as Modbus master (with a Z-LINK1 connected
via bus). If there is the absence of a Modbus slave device (for example, one Z-4AI connected
directly to a Z-LINK1 via local bus) during interrogation by the Modbus master, it is possible to
observe a timeout message on all slave devices enquired (Z-8TC).
(*) Each variation has to be performed using the software Easy Setup.
FUNCTIONING MODALITY OF RADIO MODULE
Follow the procedure described in the software Easy setup (@ 9600-8N1)
4
SW1
The module radio is internally connected to IDC10 (bus Seneca RS485)
and screw terminals (7-8-9)
5
Rs485 TERMINATOR
Enabled
6
SW1
Disabled
(*)Communication parameters from EEPROM (default:38400 baud - 8N1)
19200 baud - 8N1
SW1
38400 baud - 8N1
MODULE RADIO COMMUNICATION PARAMETERS
Z-LINK1 connected to master Modbus
1SW1
Z-LINK1 connected to slave Modbus
2 3
9600 baud - 8N1
Z-LINK1 FUNCTIONING MODALITY
FUNCTIONING

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MI002875-E
After a time interval of about 1 minute, the timeout message on the slave devices actually
belonging to the network disappears, returning to the normal functioning.The behavior just
described can be observed if there is the absence of the Z-LINK1 device connected to the
interested Modbus slave device, too (for example, the previous Z-LINK1 connected to the Z-
4AI via local bus).
Infact the Z-LINK1 devices can detect network paths with timing usually much higher
than the timeout of the Modbus Master. Therefore, the PC (Modbus master) continuing to
poll, but the network is still employed to locate the device no longer connected. In particular,
the requests that arrive to the network when it is employed by another request will be
discarded, causing the subsequent failure on the slaves in the list (timeout temporary).
Use of the network
To use the devices in the best way, mind the following points:
1. All RS485 buses headed by a Z-LINK1 must be properly polarized and terminated.
2. The packet sending for Modbus broadcast (Modbus address 0x00) is supported by the
network; anyway, for multihop MESH topologies, it is strongly discouraged because it
involves long communication times and low reliability of achieving all network elements.
3. For networks constituted by a large number of devices, avoid the densification of
infrastructural elements within the same covering range.
Important points:
- Only for the Z-LINK1 configured in REMOTE I/O modality as master, the max number of
input/output that can be configured in the I/O repetition map:
* is 20, for digital inputs/outputs
* is 50, for analog inputs/outputs
- The Easy setup software allows to negate the status of digital outputs, compared with the
corresponding input; allows to scale the analog inputs, repeating the values in the
corresponding analog outputs. In both cases, it is possible to set the fail conditions.
- It is advisable to connect the (digital or analog) outputs in the Modbus master local bus
- At the first start, the master module checks which slaves belong to the network effectively.
For this reason: first, power on the Z-LINK1 «slave» devices; final, power on the Z-LINK1
«master» module
- In the Easy Setup software (in Test configuration window) there is a incremental counter, to
display eventual fails in the modules connected and the radio communication quality. In
correspondence of each module of displayed I/O map, there is a flag that signals eventual I/O
fails in reading/writing.
PC
(master)
Z-LINK1
(SW1-1
=on)
bus RS485
Z-4AI
Z-LINK1
(SW1-1
=off)
bus RS485
Z-8TC
Z-LINK1
(SW1-1
=off)
bus RS485
timeout timeout
(temporary)

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MI002875-E
LEDS SIGNALLING
LED L2 (GREEN)
Blinking
Meaning
Data transmission via radio
LED L1 (YELLOW) Meaning
Blinking Data transmission via bus
LED L4 (GREEN)
Blinking
Meaning
The module is power on(normal functioning)
When a Z-LINK1 is power on, the following procedure is displayed to
identify the module power-on condition:
1. All LEDs (L1-L2-L4) are power on for about 1 second
2. All LEDs (L1-L2-L4) are power off for about 2 seconds
3. All LEDs (L1-L2-L4) are power on for about 50 ms
4. All LEDs (L1-L2-L4) are power off for about 2 seconds
5. Standard visualization (L4 blinks periodically)
To download the free configuration software Easy setup, see the website www.seneca.it
PROGRAMMING
To program the module, use the front connector (COM) and Easy Setup software only: set all
communication parameters correctly. In any case, to program the device, refers to Easy
Setup software instructions.
The LED L3 is not used.
Constant light Correct installation (after test)
Constant light Wrong installation (after test)
Devices directly involved in the transmission of messages may show the flashes on both L1
and L2, or only on L2. In the first case are terminal devices, while in the second case are
intermediate devices, which have the only function of forwarding the packet via radio.
NOTE: the Z-LINK1 devices are not suitable for safety applications.
123
456
S
L1 L2
Z-LINK1
789
RJ10
COM
ANTENNA
L4
X
L3
Disposal of Electrical & Electronic Equipment (Applicable throughout the European Union and other European
countries with separate collections programs). This symbol, found on your producr or on its packaging, indicates
that this product should not be treated as household waste when you wish to dispose of it. Instead, it should be
handed over to an applicable collection point for the recycling of electrical & electronic equipment. By ensuring this
product is didposed of correctly, you will help prevent potential negative consequences to the environment and
human health, which could otherwise be caused by inappropriate disposal of this product. The recycling of materials
will help to conserve natural resources. For more detailed information about the recycling of the product, please
contact your local city office, waste disposal service of the retail store where you purchased this product.
COUNTRIES IN WHICH THE Z-LINK1 CAN BE USED
The countries in which the devices can be used Z-LINK1 are compatible ERC REC 70-03
(Annex 1, G3): Austria, Belgium, Bulgaria, Czech Republic, Cyprus, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
Slovenia, United Kingdom, Switzerland, Sweden, Albania, Bosnia and Herzegovina, Croatia,
Moldova, Macedonia, Serbia and Montenegro, Turkey. Excludes: Russia, Ukraine and
Georgia.