R8 Relay

8-channel relay block

💎 Possibilities

• Contacts NO, COM (normally open relays)
• Manage loads by type Enable/Disable
• Control of lighting, ventilation, heaters and other loads
• Management of low-current devices with dry contact inputs

❓ Description

Relay block R8 is intended for switching signals and elements of electrical circuits in automated control systems for lighting, power distribution equipment, ventilation systems, climate and other electrical loads, in the fields of industry, housing and communal services and household services.

🔧 Technical data

General
Design	Universal housing for mounting on a DIN rail (width 6 din)
Degree of protection housing	IP20
Supply voltage	18…25 VDC (24 V nominal)
Power consumption, no more	2.5 W relays off; 5.8 W relays on;
Number of relay outputs	8 (normally open state)
Maximum switching voltage	30 VDC; 230 VAC;
Maximum switching current	16 A

Interfaces
USB	Service connection
RS485**	YoctoBUS or Modbus RTU
Ethernet**	IEEE 802.3 10/100BASE-T (http, UDP)
WiFi**	IEEE 802.11 (http, UDP)

** Depending on unit configuration.

tip

• For YoctoBUS blocks: the default exchange protocol type is YoctoBUS, initial configuration is not required.
• For YoctoLAN units: when connecting to the network via Ethernet, initial configuration is not required, when connected via WiFi, you must set the SSID and Password using the CONNECT Configurator software.

note

To integrate the unit into third-party systems, the protocol and RS485 exchange rate, as well as network settings, are set through the free, cross-platform CONNECT Configurator software.

👁‍🗨 How to connect

RS485 control

LAN control

🔌 API for integration into third-party systems

General block control registers

The block is controlled by setting and reading the values of the block registers.

Register ID	Register description	Write	Read	Range of values
1	Relay status 1	+	+	0, 1
2	Relay status 2	+	+	0, 1
3	Relay status 3	+	+	0, 1
4	Relay status 4	+	+	0, 1
5	Relay status 5	+	+	0, 1
6	Relay status 6	+	+	0, 1
7	Relay status 7	+	+	0, 1
8	Relay status 8	+	+	0, 1

---

RS485 ModbusRTU

RS485 setting registers.

Register ID	Register description	Write	Read	Range of values
203**	BaudRate RS485	+	+	3-9
206	Id of the Modbus block	+	+	1-247

** Correspondence of RS485 speed and value in register 203:

Value	Speed, baud/s
3	4800
4	9600
5	19200
6	38400
7	57600
8	74880
9	115200

note

It is recommended to configure the RS485 parameters using the CONNECT Configurator software

ModbusRTU mode

The unit supports standard exchange via the ModbusRTU protocol.

• Reading the state of the register is carried out by the command 3.
• Record of value in the register is carried out by the command 6.

tip

More about the protocol ModbusRTU

RS485 YoctoBUS

note

It is recommended to configure the RS485 parameters using the CONNECT Configurator software

YoctoBUS mode

info

YoctoBUS protocol commands are in text form.

• Writing a value to a register:

I_aaa_set_rrr_vvvvv

• Register value request:

I_aaa_state_rrr

• Block response to write value:

O_aaa_set_rrr_vvvvv

• Block response to a value request:

O_aaa_state_rrr_vvvvv

aaa - bus block address

rrr - register number

vvvvv - register value

• Read register value

An example of requesting state 5 of a block register (block addres is 15):

I_15_state_5
/or/
I_015_state_00005

An example of block response with value 1 in register 5:

O_015_state_005_00001

• Write value to register

An example of setting the value 0 to register 16 (block id is 11):

I_11_set_16_0
/or/
I_011_set_016_00000

An example of a block response to setting the value 0 in register 16:

O_011_set_016_00000

LAN

Block outputs are controlled by sending an HTTP GET request.

note

The network parameters of the unit are configured using the CONNECT Configurator software

• The structure of HTTP GET requests for writing a value to a register

Header	Ip address of the block	Command	Separator	Register number	Separator	Value
http://	192.168.130.150	/set	_	13	_	1

In the example shown, http://192.168.150.150/set_13_1 is set to "1" in block register 13.

• Structure of HTTP GET requests for reading block register value

Header	Ip address of the block	Command	Separator	Register number
http://	192.168.130.150	/state	_	13

In the example shown http://192.168.130.150/state_13, the block register value 13 is requested.

The structure of the block response page to a GET request

The body of the page (between the <body> tags) contains:

Control=″13″ Value=″1″

In the example shown, the block returned an HTML page with the text content Control=″13″ Value=″1″, which means that register 13 of the block is set to '1'.