DI4 OC Open collector inputs
Four-channel digital open-collector / open-drain inputs block
💎 Possibilities
- Works with any open collector or open drain switches, sensors etc.
- Easy 2-wire connection
- Low delay - just 2 ms
❓ Description
DI4 digital open collector or open drain inputs block intended for receiving signals from switches, sensors etc. in automated control systems 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 2 din) |
| Degree of protection housing | IP20 |
| Supply voltage | 20…25 VDC (24 V nominal) |
| Power consumption, no more | 2.5 W |
| Number of digital inputs | 4 (for open collector or open drain connections) |
| 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.
- For
YoctoBUSblocks: the default exchange protocol type isYoctoBUS, initial configuration is not required. - For
YoctoLANunits: when connecting to the network viaEthernet, initial configuration is not required, when connected via WiFi, you must set the SSID and Password using theCONNECT Configuratorsoftware.
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 | Channel 1 state | - | + | 0, 1 |
| 2 | Channel 2 state | - | + | 0, 1 |
| 3 | Channel 3 state | - | + | 0, 1 |
| 4 | Channel 4 state | - | + | 0, 1 |
- RS485 ModbusRTU
- RS485 YoctoBUS
- LAN
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 |
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.
It is recommended to configure the RS485 parameters using the CONNECT Configurator software
YoctoBUS mode
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 address 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
- Receiving the changing value in the register
An example of receiving message from block when in the 2th register value was changed to 1 (block address is 11):
A_011_state_002_00001
The network parameters of the unit are configured using the CONNECT Configurator software
- Structure of HTTP
GETrequests 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'.
- Structure of UDP package transmitted by block when the value in the register is changing
The text of the UDP package contains:
Control=″2″ Value=″1″
In the example shown, the block sent an UDP package with the text content Control=″2″ Value=″1″, which means that value in the register 2 was changed to '1'.