OneFex CS-IO808 User manual

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CS-IO808 User Manual
CS-IO808
Serial IO Controller
Manual

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1PRODUCT INTRODUCTION............................................................................................... 5
1.1 Features ...........................................................................................................................................5
1.2 Parameter.........................................................................................................................................5
1.3 Item Selection .................................................................................................................................6
1.4 Dimension........................................................................................................................................6
2WIRING INSTRUCTIONS..................................................................................................... 6
2.1 Terminal Definition.........................................................................................................................6
2.2 Communication Wiring..................................................................................................................7
2.2.1 RS485 Wiring ........................................................................................................................................ 8
2.2.2 RS232 Wiring ........................................................................................................................................ 8
2.3 DO Wiring.........................................................................................................................................8
2.3.1 Low Load Wiring...................................................................................................................................9
2.3.2 AC 220V Load Device Wiring ................................................................................................................9
2.3.3 AC 380V Load Device Wiring 【With Zero Line】................................................................................9
2.3.4 AC 380V Load Device Wiring【Without Zero Line】.........................................................................10
2.3.5 DC Load Device Wiring .......................................................................................................................10
2.4 Digital Input Wiring ......................................................................................................................10
2.4.1 Active Signal Wiring............................................................................................................................11
2.4.2 Passive Switch Value (Dry Contact) Wiring ........................................................................................ 11
3PARAMETERS AND WORKING MODE CONFIGURATION.................................11
3.1 Device and PC Connection Settings.........................................................................................11
3.2 Device Address.............................................................................................................................12
3.2.1 Introduction........................................................................................................................................12
3.2.2 Device Communication Address Reading...........................................................................................12
3.2.3 Offset Address Setting and Reading................................................................................................... 12
3.2.4 Baud Rate Reading and Setting ..........................................................................................................13
3.3 Working Mode...............................................................................................................................13
3.3.1 Normal Mode ..................................................................................................................................... 13
3.3.2 NOLock Linkage Mode........................................................................................................................ 13
3.3.3 Lock Linkage Mode............................................................................................................................. 14
3.3.4 All Channel Lock Linkage Mode..........................................................................................................14
3.3.5 2Device NOLock Linkage Mode ..........................................................................................................14
3.3.6 2Device Lock Linkage Mode ...............................................................................................................15
3.3.7 Working Mode Configuration.............................................................................................................15
4DEVELOPMENT DATA INSTRUCTION........................................................................16
4.1 Communication Protocol Instruction .......................................................................................16

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4.2 Modbus Register Instruction......................................................................................................16
4.3 Command List...............................................................................................................................18
4.4 Command Details.........................................................................................................................19
4.4.1 Control DO..........................................................................................................................................19
4.4.2 Query DO Status.................................................................................................................................20
4.4.3 Optocoupler Input..............................................................................................................................21
4.4.4 Flash ON Flash OFF Command ...........................................................................................................21
4.4.5 All ON and All OFF Command.............................................................................................................23
4.4.6 Active Reporting Protocol ..................................................................................................................23
5PRODUCT MAINTENANCE..............................................................................................23
5.1 Device Usage Environment ........................................................................................................23
5.2 FAQ.................................................................................................................................................24
5.2.1 RS485 /RS232 communication, no response when device control....................................................24
5.2.2 The relay can only be turned on but not turned off........................................................................... 25
5.2.3 485 interface cannot be used to establish communication and control After the relay powered on.
25
5.2.4 Multiple devices on the 485 bus and ON/OFF operation failed to send the broadcast address 254.25
5.2.5 PLC and the device cannot communicate normally ...........................................................................25
6AFTER-SALE SERVICE.....................................................................................................25
6.1 Commitment..................................................................................................................................25
6.2 Disclaimer......................................................................................................................................26
7UPDATE HISTORY...............................................................................................................26

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Notice
❖Please read this manual carefully before use and save it for reference.
❖Please follow to the operating procedures and precautions in this manual.
❖Please open the package carefully and check whether the device and
accessories have been damaged due to transportation when you receive the device.
Please contact us for return processing once damage occurs.
❖Please do not repair it yourself, and contact our technical support department
directly if the device fails.

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1 Product Introduction
CS-IO series products are IO controller using standard Modbus-RTU protocol,
supporting RS485/232. Support wide voltage power supply, multi-channel input and
output control, which can be widely used in various application scenarios such as
industrial production, agriculture, smart city and office buildings.
1.1 Features
◆DC 9-28V wide voltage power supply, support anti-reverse connection;
◆8-way DO contact isolation, normally ON and normally OFF, 10A 250VAC / 10A
30VDC;
◆8-way DI, with optocoupler isolation, used for switch detection, supports dry and
wet contacts;
◆LED indication, 1 for power status, 8 for DO status;
◆SupportsRS485+RS232 Communicationinterface,powerisolationplussignal
isolation,reliablecommunication;
◆Communication baud rate: 300bps~38400bps (, It is 9600 by default and
can be modified by software);
◆Support standard Modbus RTU protocol, read and write by register address;
◆253 device addresses can be set. The 5-bit address DIP switch can set 1-31
address codes, and those greater than 31 can be set by software;
◆Support input and output linkage, such as local linkage or dual-computer
linkage, which is convenient for multi-terminal control;
◆Support debugging software for setting parameters and IO control;
◆Support software and hardware customization. Contact Us for details.
1.2 Parameter
Paremater
Contact capacity
10A/30VDC
10A/250VAC
Durability
100,000 times (Electrical）
10,000,000 times (Mechanical)
Data interface
RS232+Isolated RS485
Rated voltage
9-28V DC
Power / work indication
1 red LED
(power, always on; working: flashing)
Output indication
8 red LEDs (DO on/off)
Working temperature
-40℃～85℃, Industrial Grade
Size
145*90*40mm
Weight
330g
Default communication format
9600,n,8,1
Baud rate
300~38400bps

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Functions
Flash ON Flash OFF
All ON All OFF
NOLock Linkage
Lock Linkage
All Channel Lock Linkage
2Device NOLock Linkage
2Device Lock Linkage
Software support
Working mode change
DO independent control
DO status query
Overall DO control;
Debugging information query;
Support various configuration software;
support Labview, etc.
Installation
35mm Din Rail Mounting/ Screw Holes
1.3 Item Selection
Item #
DO
DI
Analog
RS485
Address Dial
CS-IO101
1
1
0
RS485 * 1
Address Dial
CS-IO204
2
4
0
RS485 * 1
Address Dial
CS-IO222A
2
2
2(0-20mA)
RS485 * 1
Address Dial
CS-IO404A
4
0
4(0-20mA)
RS485 * 1
Address Dial
CS-IO404D
4
4
0
RS485 * 1
Address Dial
CS-IO606
6
6
0
RS485 * 1
Address Dial
CS-IO808
8
8
0
RS485 + RS232
CS-IO1600DI
0
16
0
RS485 + RS232
Address Dial
CS-IO1600
16
0
0
RS485 + RS232
Address Dial
CS-IO3200D
32
0
0
RS485 + RS232
Address Dial
1.4 Dimension
145*90*40mm
2 Wiring Instructions
2.1 Terminal Definition
No.
Pin
Instruction
1
+
Positive Power Supply
2
-
Negative Power Supply
3
A+
RS485 communication A+
4
B-
RS485 communication B-
5
TX
RS232 communication TX
6
RX
RS232 communication RX
7
GND
RS232 communication ground wire

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8
COM+
9
IN1
The 1st DI
10
IN2
The 2nd DI
11
IN3
The 3rd DI
12
IN4
The 4th DI
13
IN5
The 5th DI
14
IN6
The 6th DI
15
IN7
The 7thDI
16
IN8
The 8th DI
17
COM-
For passive input, Com- is connected to the negative
power supply; For active input, it is connected to the
active switch. Please refer to the input wiring diagram for
details.
18
Normally ON
The 1st DO normally ON terminal
19
Public
The 1st DO public terminal
20
Normally ON
The 2nd DO normally ON terminal
21
Public
The 2nd DO public terminal
22
Normally ON
The 3rd DO normally ON terminal
23
Public
The 3rd DO public terminal
24
Normally ON
The 4th DO normally ON terminal
25
Public
The 4th DO public terminal
26
Normally ON
The 5th DO normally ON terminal
27
Public
The 5th1st DO public terminal
28
Normally OFF
The 5th DO normally OFF terminal
29
Normally ON
The 6th DO normally ON terminal
30
Public
The 6th DO public terminal
31
Normally OFF
The 6th DO normally OFF terminal
32
Normally ON
The 7th DO normally ON terminal
33
Public
The 7th DO public terminal
34
Normally OFF
The 7th DO normally OFF terminal
35
Normally ON
The 8th DO normally ON terminal
36
Public
The 8th DO public terminal
37
Normally OFF
The 8th DO normally OFF terminal
2.2 Communication Wiring
By default, its address is 1, The host computer software can use the
default address 1 to communicate with the device (or broadcast address 254,

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which is only applicable when one device is mounted on the network).
2.2.1 RS485 Wiring
2.2.2 RS232 Wiring
2.3 DO Wiring
The relay is single-pole, double-throw, and each circuit has three terminals, one
group is normally ON and the other is normally OFF (normally ON contacts are
generally used), and the terminal identification is subject to the indications on the
film.

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2.3.1 Low Load Wiring
2.3.2 AC 220V Load Device Wiring
2.3.3 AC 380V Load Device Wiring 【With Zero Line】

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2.3.4 AC 380V Load Device Wiring【Without Zero Line】
Please add an AC contactor/intermediate relay between this device and the load in
the following four cases:
1. Load rated voltage>30VDC
2. Load rated voltage>250VAC
3. Non-Resistive Load Current>3A
4. Resistive load current>5A
2.3.5 DC Load Device Wiring
2.4 Digital Input Wiring
The switch input interface is compatible with wet and dry nodes, please pay
attention to the different connection methods of active and passive signals.
The internal optocoupler circuit of the switch value acquisition terminal is as
follows,
COM+ is an unconnected terminal (empty terminal), and COM- is the negative
pole of the power supply, which is equivalent to V-.

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2.4.1 Active Signal Wiring
Active switch (wet junction): suitable for measuring signal with voltage (high and
low level, pulse), such as infrared detection, triode output, liquid level detection,
smoke detection, PLC output, flow monitoring)
2.4.2 Passive Switch Value (Dry Contact) Wiring
It is suitable for passive contact signal, such as various switches, buttons, etc.
3 Parameters and Working Mode Configuration
3.1 Device and PC Connection Settings
The USB end of the USB to RS485/RS232 converter is directly connected to the USB

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port of computer, and 485/232 end is wired according to the wiring method in "Chapter 2.2
Communication Wiring".
Serial port number query method: Open "My Computer - Device Manager - Port (COM
and LPT)" and the COM number that appears after the USB to 485/232 device is inserted is
the serial port number.
3.2 Device Address
3.2.1 Introduction
The Offset Address of this device is 1 by default, and the broadcast address is
254 to communicate, but 0 cannot be used.
Communication address = Offset Address.
3.2.2 Device Communication Address Reading
After the device connected normally, click "read" on the serial relay debugging
software to read the current address 254 [only support broadcast read address
when there is one device on the bus].
3.2.3 Offset Address Setting and Reading
Click "Read" or "Set" to read or set the Offset Address of the device (address
parameters stored in the device).

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Needs restarting to take effect if the Offset Address changed.
3.2.4 Baud Rate Reading and Setting
Click "Read" and "Set" to read and set the baud rate and address respectively,
which will take effect immediately after the operation.
3.3 Working Mode
3.3.1 Normal Mode
The relay takes corresponding actions after ON or OFF command.
3.3.2 NOLock Linkage Mode
It is a board module with optocoupler input and DO. In this mode, the input
optocoupler and the relay are directly linked.
The optocoupler input signal takes effect -> the corresponding relay is pulled in,
The optocoupler input signal is canceled -> the corresponding relay is
disconnected.
In this mode, due to mechanical and program delay, there will be a certain delay

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between the optocoupler input signal and the relay action, but the maximum will not
exceed 0.05 seconds.
In this mode, all relays are directly linked by the optocoupler, so the serial port
cannot operate the relay. This is not an abnormal phenomenon, but after the serial
port operates the relay, it is linked by the optocoupler state before the relay is still in
action.
3.3.3 Lock Linkage Mode
In this mode, each time the optocoupler inputs a signal, the corresponding relay
is flipped once.
The optocoupler input signal takes effect -> the relay flips (the pull-in changes to
disconnect, the disconnect changes to pull-in)；
The optocoupler input signal is canceled -> the relay does not act；
This mode also has the delay problem of unlocked mode, but the delay time is
also not greater than 0.05 seconds. This mode can be mainly used for external
signal triggering to control the start and stop of the device. For example, an
optocoupler is connected to a button, and the corresponding relay is connected to
an electrical device. Each time the button is pressed, the device will switch to a start-
stop state.
3.3.4 All Channel Lock Linkage Mode
The module itself has a board module with optocoupler input and DO. In this
mode, each time the optocoupler inputs a signal, the corresponding relay will be
pulled in, and relays of the other optocouplers will be disconnected if no signal is
input.
The optocoupler input signal takes effect -> the corresponding relay is pulled in
and other relays are disconnected;
The optocoupler input signal is canceled -> the relay does not act;
This mode also has a delay problem, but the delay time is also not greater than
0.05 seconds. This mode can be mainly used for external signal triggering to control
the start and stop of different devices, such as
The multi-channel optocoupler is not connected to a button, and the
corresponding relay is connected to an electrical device. If you press a button, the
corresponding device will switch to the start state, and other devices will stop
running.
3.3.5 2Device NOLock Linkage Mode
This mode requires two devices with the same address and mode to complete.
After the two devices are connected through direct connection 485 or cross 232, the
optocoupler state of module 1 will directly control the state of the corresponding
relay of module 2.
No. 1 optocoupler input signal of module 1 is valid—> No. 1 relay of module 2 is
OFF

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No. 1 optocoupler input signal of module 1 disappears -> No. 1 relay of module
2 is disconnected
The relay response delay time in this mode is longer than the previous modes,
but not more than 0.1 second (9600 baud rate).
In this mode, if the 485 bus is used, multiple devices can be connected in
parallel, and the addresses of the devices match each other, so that the remote
switch value can be transmitted. For example, if there are multiple low-speed
switches on site that need to be transmitted to the control room 500 meters away to
control the alarm lights or bells, it is only necessary to arrange a few modules in the
workshop and connect them to the corresponding modules in the machine room
through two twisted-pair shielded cables. can complete this task. In the same way,
the button signal of the computer room operation can also be directly transmitted to
the relay located in the computer room module.
3.3.6 2Device Lock Linkage Mode
This mode requires two devices with the same address and mode to complete.
After the two devices are connected through direct connection 485 or cross 232, the
optocoupler state of module 1 will take effect and the state of the corresponding
relay of control module 2 will be reversed.
No. 1 optocoupler input signal of module 1 is valid—> No. 1 relay of module 2 is
flipped
No. 1 optocoupler input signal of module 1 disappears -> No. 1 relay of module
2 does not act
The application of this mode is similar to the "2Device NOLock Linkage" mode,
but it is more suitable for the start and stop of remote-control equipment. Just install
a button on the operation end to realize the action of pressing once to start and
pressing once to stop.
3.3.7 Working Mode Configuration
After the device communicates normally, select the corresponding working
mode setting in the software working mode part, as shown in the following figure:

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4 Development Data Instruction
4.1 Communication Protocol Instruction
This product supports standard Modbus commands. For detailed command
generation and parsing methods, you can refer to "MODBUS Protocol English
Version" based on the register table in this article.
This product supports Modbus RTU format.
4.2 Modbus Register Instruction
This control card supports communication of various function codes, please
refer to the below.
Instruction code
Meaning
1
Read coil register [DO]
2
Read Discrete Input [DI]
3
Read parameter register
5
Write a single coil
15(0x0F)
write multiple coils
Register address table:
Register name
Register address
Explaination
Coil Control
Coil Control 1
Write coil
Command 1
00001
The 1st DO
Coil Control 2
00002
The 2nd DO
Coil Control 3
00003
The 3rd DO
Coil Control 4
00004
The 4th DO
Coil Control 5
00005
The 5th DO
Coil Control 6
00006
The 6th DO

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Coil Control 7
00007
The 7th DO
Coil Control 8
00008
The 8th DO
Discrete Input
Input 1
Read DI
Command 2
00001
The 1st DI
Input 2
00002
The 2nd DI
Input 3
00003
The 3rd DI
Input 4
00004
The 4th DI
Input 5
00005
The 5th DI
Input 6
00006
The 6th DI
Input 7
00007
The 7th DI
Input 8
00008
The 8th DI
Parameters
Configuration
Holding
register
Modbus
Register
address
PLC
Register
address
Explaination
Communication
baud rate
0x0000
41001
See the below corresponding
table of baud rate values, the
default value is 0, and supports
0-5. This register determines the
communication baud rate of
RS232 and RS485 at the same
time.
Spare
0x0001
41002
Spare, user cannot write any
value.
Offset address
0x0002
41003
Device address=Offset address
+ DIP switch address
Working Mode
0x0003
41004
User can use, store user data
Delay
0x0004
41005
User can use, store user data
（1）The Modbus device command supports the following Modbus addresses:
00001 to 09999 are discrete outputs (coils)
10001 to 19999 are discrete inputs (contacts)
30001 to 39999 are input registers (usually analog inputs)
40001 to 49999 are holding registers (usually store device configuration information)
In 5-bit code format, the first character determines register type, and the remaining 4
characters represent address.
Address 1 starts from 0, such as 00001 corresponds to 0000.
（2）Baud rate value corresponding table
Value
Baud rate
0
9600
1
2400
2
4800
3
9600
4
19200
5
38400

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（3）The relay status can be queried through 30002 address or through 00001-
00002 address, but the control can only use 00001-00002 address. 30002 address
data length is 16bit. Up to 16 relays can be represented.
The responding results as follow:
Bite
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Relay
8
7
6
5
4
3
2
1
16
15
14
13
12
11
10
9
The bit 8 of the data of register 30009 is the same as the data of register 00001.
The same is true for the optocoupler input. Bit8 and bit9 of register 30003 and
registers 10001 and 10002 all correspond to the specified hardware.
The register address is in accordance with the PLC naming rules, the real address is
to remove the highest bit, and then subtract 1
4.3 Command List
Scene
RTU format (send in hexadecimal)
Query 8 DOs’status
FE 01 00 00 00 08 29 C3
Return query command information
FE 02 01 07 D0 5E
Control the 1st DO on
FE 05 00 00 FF 00 98 35
Return control information
FE 05 00 00 FF 00 98 35
Control the 1st DO off
FE 05 00 00 00 00 D9 C5
Return control information
FE 05 00 00 00 00 D9 C5
Control the 2nd DO on
FE 05 00 01 FF 00 C9 F5
Control the 2nd DO off
FE 05 00 01 00 00 88 05
Control the 3rd DO on
FE 05 00 02 FF 00 39 F5
Control the 3rd DO off
FE 05 00 02 00 00 78 05
Control the 4th DO on
FE 05 00 03 FF 00 68 35
Control the 4th DO off
FE 05 00 03 00 00 29 C5
Control the 5th DO on
FE 05 00 04 FF 00 D9 F4

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Control the 5th DO off
FE 05 00 04 00 00 98 04
Control the 6th DO on
FE 05 00 05 FF 00 88 34
Control the 6th DO off
FE 05 00 05 00 00 C9 C4
Control the 7th DO on
FE 05 00 06 FF 00 78 34
Control the 7th DO off
FE 05 00 06 00 00 39 C4
Control the 8th DO on
FE 05 00 07 FF 00 29 F4
Control the 8th DO off
FE 05 00 07 00 00 68 04
Read the 1st DI
FE 02 00 00 00 01 AD C5
Return Information
FE 02 01 00 91 9C
Read the 2nd DI
FE 02 00 01 00 01 FC 05
Read the 3rd DI
FE 02 00 02 00 01 0C 05
Read the 4th DI
FE 02 00 03 00 01 5D C5
Read the 5th DI
FE 02 00 04 00 01 EC 04
Read the 6th DI
FE 02 00 05 00 01 BD C4
Read the 7th DI
FE 02 00 06 00 01 C4 4D
Read the 8th DI
FE 02 00 07 00 01 1C 04
Query the status of 8 DIs
FE 02 00 00 00 08 6D C3
Return query information
FE 02 01 00 91 9C
4.4 Command Details
4.4.1 Control DO
Control 1 DO (take the first DO ON as an example, other channels refer to this)
Sending code: FE 05 00 00 FF 00 98 35

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Field
Meaning
Note
FE
Device address
It is the broadcast address
05
05 command
Single control command
00 00
Address
Register address of the DO to control
FF 00
Command
DO ON action
98 35
CRC16
CRC16 checksum of the first 6 bytes of data
Relay return information:：
Return code：FE 05 00 00 FF 00 98 35
Field
Meaning
Note
FE
Device address
It is the broadcast address
05
05 command
Single control command
00 00
Address
Register address of the DO to be controlled
FF 00
Command
DO ON action
98 35
CRC16
CRC16 checksum of the first 6 bytes of data
4.4.2 Query DO Status
Query 8 DOs
Sending code: FE 01 00 00 00 08 29 C3
Field
Meaning
Note
FE
Device address
It is the broadcast address
01
01 command
Query DO status command
00 00
Starting address
Register address of the first DO to be queried
00 08
Number of queries
The number of DOs to be queried
29 C3
CRC16
CRC16 checksum of the first 6 bytes of data
Relay card return information:
Return code: FE 01 01 00 61 9C
Field
Meaning
Note
FE
Device address
01
01 command
Return command: If the query is wrong,
return 0x81
01
Number of bytes
All bytes of return status information. 1+(n-
1)/8
00
Status of the query
Returns the DO status.
The return value is hexadecimal, converted
to binary data, 0 means off, 1 means on.
Example: When querying 4 DOs, if the
returned field is 08, it will be 1000 after
conversion into binary, then 1, 2, and 3 are