OneFex CS-IO1600DI User manual

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CS-IO1600DI User Manual
CS-IO1600DI
Serial I/O Module
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
2.1 Terminal Definition.........................................................................................................................6
2.2 Communication Wiring..................................................................................................................7
2.2.1 RS485 Wiring ........................................................................................................................................ 7
2.2.2 RS232 Wiring ........................................................................................................................................ 7
2.3 DI Wiring ..........................................................................................................................................7
2.3.1 Active Signal Wiring.............................................................................................................................. 8
2.3.2 Passive Switch (dry contact) Wiring ..................................................................................................... 8
3PARAMETERS AND WORKING MODE CONFIGURATION................................... 9
3.1 Device and PC Connection Settings...........................................................................................9
3.2 Device Address...............................................................................................................................9
3.2.1 Introduction..........................................................................................................................................9
3.2.2 Device Communication Address Reading...........................................................................................10
3.2.3 Software Address Setting and Reading ..............................................................................................10
3.2.4 Baud Rate Reading and Setting ..........................................................................................................11
4DEVELOPMENT DATA INSTRUCTION........................................................................11
4.1 Communication Protocol Instruction .......................................................................................11
4.2 Modbus Register Instruction......................................................................................................12
4.3 Command List...............................................................................................................................13
4.4 Command Details.........................................................................................................................13
4.4.1 Optocoupler Input..............................................................................................................................13
5PRODUCT MAINTENANCE..............................................................................................15
5.1 Device Usage Environment ........................................................................................................15
5.2 FAQ.................................................................................................................................................15
5.2.1 RS485 /RS232 communication, no response when device control.................................................... 15
5.2.2 The relay can only be turned on but not turned off...........................................................................16
5.2.3 485 interface cannot be used to establish communication and control After the relay powered on.
16
5.2.4 Multiple devices on the 485 bus and close operation failed to send the broadcast address 254. ....16

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5.2.5 PLC and the device cannot communicate normally ...........................................................................17
5.2.6 How to restore the factory settings ...................................................................................................17
6AFTER-SALE SERVICE.....................................................................................................17
6.1 Commitment..................................................................................................................................17
6.2 Disclaimer......................................................................................................................................18
7UPDATE HISTORY...............................................................................................................18

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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 serial I/O module 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;
◆16* DI with optocoupler isolation, used for switch detection, supports dry and wet
contacts;
◆LED indication, 1 for power and working status;
◆SupportsRS485+RS232Communicationinterface,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 registeraddress;
◆0-255; Bulit-in address DIP switch; Set address codes by software;
◆Support flash ON flash OFF;
◆Power-off memory: keep the original state once power off and on again.
◆Supporting setting software for setting parameters and IO control;
◆Support software and hardware customization.
1.2 Parameter
Paremater
Durability
100,000 times (Electrical）
10,000,000 times (Mechanical)
Data interface
RS485/RS232
Working Voltage
DC 9-28V
Power / work indication
1 red LED
(power, always on; working, flashing)
Working temperature
-40℃～85℃, Industrial Grade
Size
200*110*60mm
Weight
650g
Default communication format
9600,n,8,1, Even can be configured.
Baud rate
300~38400bps
Software support
Setting and control software;
Support various configuration software;
support Labviewd, etc.
Installation
35mm Din Rail Mounting / Screw Holes

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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-IO404
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-IO3200
32
0
0
RS485 + RS232
Address Dial
1.4 Dimension
200*110*60mm
2 Wiring Instructions
2.1 Terminal Definition

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2.2 Communication Wiring
By default, its address is 1, and the DIP switches are in the off state.
The host computer software can use the default address 1 to
communicate with the device (or broadcast address 254, which is only
applicable when one device is mounted on the network).
2.2.1 RS485 Wiring
2.2.2 RS232 Wiring
2.3 DI 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,
V-(DGND) is the negative common terminal of the optocoupler, and the sensor
signal can be connected to V+(VIN) and Inx respectively.

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2.3.1 Active Signal Wiring
It is suitable for measuring signals with voltage, such as level high and low, and
pulse output.
2.3.2 Passive Switch (dry contact) Wiring
It is suitable for collecting passive contact signals, such as switches and buttons.

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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 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 = Hardware address (DIP switch address) + Offset
address.
The device’s Factory default settings of communication address is 1.
With DIP switch, users can quickly modify the device address.
（1）The address is "31" when all 5 dial codes are dialed above;
（2）The address is "0" When all t5 dial codes are dialed below;
（3）The leftmost 1 is the lowest digit in binary;；

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（4）DIP address table:
3.2.2 Device Communication Address Reading
After the device is connected normally, click "read address" on the serial relay
debugging software to read the current address of the device [only support
broadcast read address when there is one device on the bus].
3.2.3 Software Address Setting and Reading
Click "Read" or "Set" to read or set the software address of the device (address
parameters stored in the device).

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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.
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.

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4.2 Modbus Register Instruction
This control card supports communication of various function codes, please
refer to the below.
Instruction code
Meaning
02
Read discrete input [DI]
03
Read parameter register (06 for writing parameter)
Register address table:
Register name
PLC Register
address
Explaination
Discrete input
Input 1
Read switch
function code 02
0000H
The 1st DI
Input 2
0001H
The 2nd DI
Input 3
0002H
The 3rd DI
Input 4
0003H
The 4th DI
Input 5
0004H
The 5th DI
Input 6
0005H
The 6th DI
Input 7
0006H
The 7th DI
Input 8
0007H
The 8th DI
Input 9
0008H
The 9th DI
Input 10
0009H
The 10th DI
Input 11
000AH
The 11th DI
Input 12
000BH
The 12th DI
Input 13
000CH
The 13th DI
Input 14
000DH
The 14th DI
Input 15
000EH
The 15th DI
Input 16
000FH
The 16th DI
Parameters Configuration
Communication
baud rate
Read register
function code 03
Write register
function code 06
03E8H
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
03E9H
Spare, user cannot write any
value.
Offset address
03EAH
Communication address =
software address + DIP switch
address
Woring Mode
03EBH
Working mode storage

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Spare
03ECH
Spare
Baud rate value corresponding table
4.3 Command List
Scene
RTU format (send in hexadecimal)
Query 4 DIs ‘status
FE 02 00 00 00 08 6D C3
Return query information
FE 02 01 07 D0 5E
Query 16 DIs ‘status
01 02 00 00 00 10 79 C6 [Unicast Send]
FE 02 00 00 00 10 6D C9 [Broadcast] Send]
Return query information
01 02 02 00 00 B9 B8[Unicast Send]
FE 02 02 00 00 AD AC[Broadcast] Send]
4.4 Command Details
4.4.1 Optocoupler Input
Query optocoupler (2-way optocoupler)
Sending code: FE 02 00 00 00 02 ED C4
Field
Meaning
Note
FE
Device address
02
02 command
Query discrete input (optocoupler input) status
command
00 00
Address
Register address of the first optocoupler to be
queried
00 02
Command
Number of optocoupler states to query
6D C6
CRC16
CRC16 checksum of the first 6 bytes of data
Value
Baud rate
0
9600
1
2400
2
4800
3
9600
4
19200
5
38400

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Relay return information:：
Return code：FE 02 01 00 91 9C
Field
Meaning
Note
FE
Device address
02
02 command
Return command: if the query is wrong,
return 0x82
01
Address
Returns all bytes of status information
00
Command
Returns the state of the optocoupler. Bit0:
Status of the first optocoupler Bit1: Status of
the second optocoupler
. . . . . . .
Bit7: Status of the eighth optocoupler
91 9C
CRC16
CRC16 checksum of the first 6 bytes of data
Query optocoupler (16-way optocoupler)
Send command code: FE 02 00 00 00 10 6D C9
Field
Meaning
Note
FE
Device address
02
02 command
Query discrete input (optocoupler input)
status command
00 00
Address
Register address of the first optocoupler to
be queried
00 10
Command
Number of optocoupler states to query
6D C9
CRC16
CRC16 checksum of the first 6 bytes of
data
Optocoupler return information:
Return code: FE 02 02 00 00 AD AC
Field
Meaning
Note
FE
Device address
02
02 command
Return command: if the query is wrong,
return 0x82
02
Address
Returns all bytes of status information
00 00
Command
first byte
Bit0: Status of the first optocoupler
Bit1: Status of the second optocoupler
. . . . . . .
Bit7: Status of the eighth optocoupler
second byte
Bit0: Status of the ninth optocoupler
Bit1: Status of the 10th optocoupler
. . . . . . .
Bit7: Status of the 16th optocoupler

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AD AC
CRC16
CRC16 checksum of the first 6 bytes of
data
5 Product Maintenance
5.1 Device Usage Environment
1. The working voltage is 9~28V. If the input voltage is too high or too low, the
device may not work normally or even be damaged.
2. The DI input terminal adopts optocoupler isolation protection, and its bearing
voltage is 5~24V.
3. Do not overload for the DO output terminals. Please connect them correctly
within the allowable range (refer to the wiring diagram for details).
4. The allowable air humidity of the device is 5~85%RH, and it does not have
waterproof capability. Do not use it in condensation or liquid immersion
environments.
5. The relay is a component with a certain service life. When the theoretical service
life is reached, please replace it in time to avoid danger.
5.2 FAQ
5.2.1 RS485 /RS232 communication, no response when device control
Confirm whether the communication speed, communication address, and
wiring are correct.
You can use the broadcast address 254 to try to communicate with unknown
addresses;
Confirm whether the serial port number ONed on the software is correct;
Check whether the power supply and work indicator are normal;
For the RS232 version, please correctly identify the RS232 serial port module
used as male or female.
The module TXD is connected to RX pin of the relay
The module RXD is connected to TX pin of the relay
The module GND is connected to GND pin of the relay

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5.2.2 The relay can only be turned on but not turned off
Check Whether the read address reads the actual device address;
Check whether there is a return command in the debug information
column, and whether the return command is correct.
If reading address fails, there is no return command or abnormal return
command, check the communication line and communication converter
When the io module and the controlled equipment share a DC power
supply, if the controlled equipment is heavily loaded, it may cause insufficient
power supply of the io module and the relay cannot switch normally.
5.2.3 485 interface cannot be used to establish communication and
control After the relay powered on.
1. Check whether the 485 line is reversed and whether the voltage is within the
specified range;
2. Fill in 254 for the device address on software to test whether it can be can be
controlled with different baud rates.
5.2.4 Multiple devices on the 485 bus and close operation failed to send
the broadcast address 254.
If there are multiple devices on the 485 bus, the address of each device
cannot be the same, and the broadcast address 254 cannot be used for
communication.
Use DIP switch/software to distinguish the module' address, otherwise the
command cannot be executed correctly. (Please refer to below photo: how to set
the address if multiple modules)

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The broadcast address 254 can be used when there is only one device on
the bus. When there is more than one device.
5.2.5 PLC and the device cannot communicate normally
1. Check whether the PLC communication parameters match the relay;
2. Check whether the PLC communication protocol is standard Modbus RTU;
3. Check whether the definition of Siemens 485 bus AB is opposite to this device.
5.2.6 How to restore the factory settings
You can use the DIP switch to restore the factory settings.
Operation steps:
Power on, dial all the dial codes to ON, and toggle bit5 back and forth 6 times.
Dial all the dial codes, then you can use the host computer software (baud rate
9600, address 254) to communicate.
6 After-sale Service
6.1 Commitment
OneFex provides after-sales service of the device within one year from the date of
sale. But for damage caused by improper use, you need to send it back and take the
freight for repair or adjust. Make sure that the package is in good condition to avoid
damage during transportation. Repair the damage of device instrument is free.

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6.2 Disclaimer
This document does not grant any intellectual property license, express or implied,
or by hijacking or otherwise. OneFex assumes no responsibility other than those
specified in the terms and conditions of sale of the product. And makes no
warranties, express or implied, for the sale and/or use of this product, including the
product's fitness for a particular purpose, merchantability, or liability for infringement
of any patent, copyright or other intellectual property rights. OneFex may change the
product specifications and descriptions at any time without prior notice.
7 Update History
Date
Update Content
Version
2019/05/27
Create document
V1.0.1
OneFex Industrial Technology Co.,Ltd
Email: [email protected]
Website: www.onefexindustrial.com