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5 specifications of optional functions, 5 specifications of optional functions -13, 5 specfcatons of optonal functons – Yokogawa µR20000 User Manual

Page 241: App index, Ethernet communcaton interface (/c7)

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Index

12.5 Specfcatons of Optonal Functons

Alarm Output Relay (/A1, /A2, /A3, /A4, and /A5)

Item

Specfcatons

Operation

Outputs relay contact signals from the dedicated terminals on the rear panel when alarms occur.

Number of outputs

2 outputs (/A1), 4 outputs (/A2), 6 outputs (/A3), 12 outputs (/A4), 24 outputs (/A5)

Relay contact rating

250 VDC/0.1 A (for resistance load)
250 VAC (50/60 Hz)/3 A

Output format

NO-C-NC

Auxiliary functions

Energized/De-energized operation selectable (common to all relays)
Hold/Non-hold operation selectable (common to all relays)
AND/OR operation selectable
Reflash operation (Fixed to relay I01, I02, and I03. Relay release time is approx. 500 ms.)

Diagnosis output

Relay I01 can be used for diagnosis output.
Diagnosis output: Outputs a relay signal when an error in the recording section (plotter on the

pen model), a burnout, or an error in the A/D converter is detected. Relay operation is fixed to

de-energized and non-hold.

RS-422A/485 Communcaton Interface (/C3)

Item

Specfcatons

Connection

Complies with EIA RS-422A/485

Connection type

Multi-drop connection 1:32 (four-wire system), 1:31 (two-wire system)

Transmission mode

Half-duplex

Synchronization

Start-stop synchronization

Baud rate

1200, 2400, 4800, 9600, 19200, or 38400 bps

Start bit

Fixed to 1 bit

Data length

7 bits or 8 bits

Stop bit

Fixed to 1 bit

Parity

Odd, even, or none (no parity)

Received buffer length

2047 bytes

Escape sequence

Open and close

Protocol

Dedicated protocol, Modbus slave protocol

Communication mode

ASCII for input/output for control and setting
ASCII or binary for input/output of measured data

Communication distance

1.2 km

Ethernet Communcaton Interface (/C7)

Item

Specfcatons

Function

Setting/Measurement server Uses a dedicated protocol

Measured/computed data, setup data, status byte

Maintenance/Test server

Connection information, network statistics, etc.

Instrument information server Model, serial number, etc.

Electrical and mechanical specifications

Conforms to IEEE 802.3.

Interface

Basic specifications

Connection

Ethernet (10BASE-T)

Protocol

TCP, IP, UDP, ICMP, and ARP

The maximum number of simultaneous connections and the number of simultaneous use
Functon

Admnstrators

Maxmum Number of

Connectons Users

Number of

Smultaneous Users Port Number

Setting/Measurement server 3

1

2

34260/tcp

Maintenance/Test server

1

1

1

34261/tcp

Instrument information server -

-

-

34264/udp

Miscellaneous

User authentication

Administrator: 1, users: 6 (limitations placed on users)

Keepalive

Drops the connection if there is no response to an inspection packet. Use or not use is

selectable.