Chapter 14 RS-422/485C function of K200S MASTER-K
14-1
14 RS-422/485 function of K200S
This chapter will describe the built-in RS-422/485 communication function of K200S-B type. (A
and C type don’t support RS-422/485 communication)
14.1 Introduction
1) The K200S B-type (K3P-07BS) includes the RS-422/485 communication function, and it
supports 1:N (master : slave) network between PLCs and external devices such as PC.
2) The communication parameters are set with the basic and high speed link parameter
setting of KGL-WIN or KLD-150S
3) The MASTER-K dedicated protocol is used.
14.2 Features
1) User can define a data access block up to 64 block and the data access block is consist
of 1 ~ 60 words.
2) Each data access blocks can have independent time-out setting.
3) Max. 32 station can join in the network.
4) There is a flag indicates the error count and error code of each high speed parameter
setting and it is updated whenever an error occurs.
5) User can monitor the communication status of each parameter setting through the
monitoring function of KGL-WIN.
14.3 Specification
Items Specification
Serial communication type RS-422/485
Protocol MASTER-K dedicated protocol
Synchronization Asynchronous
Transmission distance Max. 500m
Station number Max. 32 stations ( 00 ~ 31 )
Data bit 8 bits
Stop bit 1 bits
Data
type
Parity None
Transmission speed
9600, 19200, 38400, 56000, 57600, 76800, 115200,
128000 bps (Selectable)
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