Yokogawa GC8000 Process Gas Chromatograph - Manual (Page 331)

<5. EtherLCD>
5-80
IM 11B08A01-01E
5.4.14 Communications Setup
1 1 / 1 1 / 2 2
1 5 : 1 5 : 4 5 Communications Setup
COM # 1
>
- Type DCS
- Protocol MODBUS
- Trans contents * * * * * * * * * *
- Recep contents * * * * * * * *
- Trans speed 9600bps
- Procedure * * * * * * * * * * * * * * * * *
- Parity
Odd
- Com mode RTU mode
- Scaling coef Real
Menu COM#
F1 F2 F3 F4 F5 F6
Figure 5.88 Examples of communications setup screen
F1 (Menu): Displays the Table menu screen.
F6 (COM #): Sets a communication port number.
• Modbus protocol can be set to both COM1 and COM2. However, GCCU and GCCU or
Y-Protocol (GC1000/GC8, GC6, GCHC) and Y-Protocol cannot be set to COM1 and COM2
respectively.
• Items that cannot be set due to types and protocols are displayed with * (asterisk).
Type NA DCS GCCU
Protocol × MODBUS GC1000/GC8 GC6 GCHC ×
Trans contents Ч Ч ○ ○ ○ ○
Recep contents Ч Ч ○ ○ ○ ○
Trans speed × ○ ○ ○ ○ ○
Procedure Ч Ч ○ ○ ○ ○
Parity × ○ ○ ○ ○ ○
Com mode Ч ○ Ч Ч Ч Ч
Scaling coef Ч ○ Ч Ч Ч Ч
For the Y-Protocol, refer to “ Serial Communication (Y-Protocol)” of page App.D-21
Display Item Name Set Lower Limit Upper Limit Unit Remarks
COM # 1 2 None, DCS, GCCU
Type ○ * None, DCS, GCCU
Protocol ○ * MODBUS, GC1000/GC8, GC6,
GCHC * Only when the type is
DCS
Trans
contents
○ * Analyzed value, Alarm, All data
Recep
contents
○ * None, Command, All data, GC8
type
Trans speed ○ * 1200 bps, 2400 bps, 4800 bps,
9600 bps, 19200 bps, 38400
bps
Procedure ○ * Without procedure, With
procedure
Parity ○ * None, Odd, Even
Com mode ○ * RTU mode, ASCII mode
Scaling coef ○ * Real, 9999, 65535
*: The settings are valid after rebooting or turning off/on its power.
2nd Edition : May 11, 2012-00