M2I TOPRW - 5.1 Serial Communication Specifications

M2I Corporation Industrial HMI Touch Panel HW Installation Manual
M2I Corporation
M2I Bldg, 35-11, Jeonpa-ro 24beon-gil, Manan-gu, Anyang-si, Gyeonggi-do, 430-857, Korea. Tel :+82-70-465-3366,Fax:+82-31-465-3355 www.m2i.co.kr
15 / 23
Chapter 5. External Device Interface
In order for the main unit to communicate with an external device, it is necessary to connect the two devices
by refering to the following.
5.1 Serial Communication Specifications
5.1.1 RS-232C
Items Contents
Protocol
Half Duplex
Synch
Asynchronous
Communication Distance
About 15m
Type of Connection
1:1
Control Code
ASCII Code or HEXA Code
Transmission Speed
2400,4800,9600,19200,38400,57600,76800,
115200 bps
Data Type
Data Bit 7, 8 bit
Parity Bit NONE, ODD, EVEN Parity
Stop Bit 1, 2 bit
Modular Jack
DSUB 9pin
5.1.2 RS-422/485
Items Contents
Protocol Half Duplex
Synch Asynchronous
Communication Distance About 500m
Type of Connection 1:N (N ≤ 31)
Control Code ASCII Code or HEXA Code
Transmission Speed
2400,4800,9600,19200,38400,57600,76800,
115200 bps
Data Type
Data Bit 7, 8 bit
Parity Bit
NONE,ODD, EVEN Parity
Stop Bit
1, 2 bit
Modular Jack
DSUB 9pin
5.1.3 COM1 Connector pin number and Signal name
Type Pin No. Signal Direction Meaning
9Pin Female
1 - -
Not Available
2 RD(RxD)
Input RS-232C Receive Data
3 SD(TxD)
Output RS-232C Send Data
4 - -
Not Available
5 SG
- Signal Ground
6 - -
Not Available
7 VCC
*1
Output +5V , 0.2A
8 VCC GND
*1
- Power Ground
9 - -
Not Available
*1 When need VCC for external equipment , use 7.VCC and 8.VCC GND that output is 0.2A.