REMOTE Specifications  (continued)

RS-485 input/output terminal

The RS-485 interface enables external operations.

The figures below show RS-485 input/output terminal pin arrangement and connections.

TSL protocol version 3.1 and 4.0 are supported. Make sure that the same TSL protocol versions are used on external control devices and the monitor.

For information on specific systems using RS-485 input terminals, contact your supplier.

Connection example

External control device

RS-485 IN RS-485 OUT

RS-485 IN RS-485 OUT

RS-485 IN RS-485 OUT

•A loop-through connection using the RS-485 input and output terminals allows operation of multiple monitors (up to 32 monitors).

•Connect a terminator (120 Ω) between the first and second pin of the OUT terminal on the last monitor in the chain.

„„Connectors and signals

Connector: 8-pin RJ-45 connector

 

 

1

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

 

4

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

 

6

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

 

 

 

7

 

 

 

 

 

 

 

IN

 

8

 

 

 

 

 

 

OUT

 

8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin number

 

 

 

 

 

 

 

 

 

 

 

 

IN (input)

 

 

 

OUT

 

Signal

 

 

 

 

Description

 

 

(output)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

3

 

 

RXD+

 

 

 

 

Received data (+)

 

 

2

 

 

 

6

 

 

RXD-

 

 

 

 

Received data (-)

 

 

3

 

 

 

1

 

 

TXD+

 

 

 

 

Send data (+)

 

 

4

 

 

 

4

 

 

N.C.

 

 

 

 

Not connected

 

 

5

 

 

 

5

 

 

N.C.

 

 

 

 

Not connected

 

 

6

 

 

 

2

 

 

TXD-

 

 

 

 

Send data (-)

 

 

7

 

 

 

7

 

 

N.C.

 

 

 

 

Not connected

 

 

8

 

 

 

8

 

 

GND

 

 

 

 

Ground

„„Communication parameters

 

 

 

 

 

 

 

 

Synchronous system

Asynchronous system

Transfer rate

 

 

 

38,400 bps

 

 

 

 

 

 

 

 

Parity

 

 

 

 

 

 

 

EVEN

 

 

 

 

 

 

 

 

 

 

Data length

 

 

 

8 bit

 

 

 

 

 

 

 

 

 

 

Stop bit

 

 

 

1 bit

 

 

 

 

 

 

 

 

 

 

Flow control

 

 

 

None

 

 

 

 

 

 

 

 

 

 

„„Command format

STX (02h)

Header (ID)

Command

Data

EXT (03h)

The header (ID) is 8-bit data.

Use the [RS-485 ID SETUP] function in the [SYSTEM CONFIG] menu to set up.

Setting the most significant bit on an external control device allows you to switch between TSL protocol support and “Setting command” (→page64)/“Query commands” support (→page 67). Example: RS-485 ID SETUP  31 setting  (hexadecimal conver-

sion)

Header 1Fh (for support of commands listed below) Header 9Fh (for TSL protocol support)

When 0 is set in [RS-485 ID SETUP], multiple monitors can be controlled.

„„Response formats

1.Setting command response

STX (02h)

Command

EXT (03h)

2.Query command response

STX (02h)

Data

EXT (03h)

3.Error response

STX (02h)

Error codes

EXT (03h)

Error codes

ER001: Invalid command

ER002: Parameter error

When 0 is set in [RS-485 ID SETUP], operation is enabled but responses are not.

After receiving a monitor response command, there should be a time lag of approx. 200 ms before a command is transmitted from an external control device.

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