Download Panasonic Web Datalogger Unit User`s Manual

Transcript
11.1.4 Communication Specifications
Model number
Interface
AFPG801
1-ch RS232C
(non-isolated)
AFPG802
2-ch RS232C
(non-isolated)
Note7)
Note7)
AFPG803
AFPG806
1-ch RS485
1-ch RS232C
1-ch RS485
Note7)
Note7)
Note5) Note6)
Transmission
distance
15 m
Baud rate
2400, 4800, 9600, 19200, 38400, 57600, 115200 bps
15 m
1200 m
Note1) Note2)
15 m
1200 m
Note1) Note2)
19200,
115200 bps
Note3) Note4)
Communication
method
Synchronous
method
Communication
format
Half-duplex communication
Start stop synchronous system
Stop bit: 1 bit/2 bits
Parity: None/Even/Odd
Data length: 7 bits/8bits
Start code: STX/No STX
End code: CR/CR+LF/None/ETX
Data
Transmits from bit 0 character by character.
transmission
order
No. of connected
Max. 99 units Max. 99 units
units
Note1) The transmission distance is limited by the specified baud rate and No. of connected units. When
using a baud rate of 38400 bps or less, the allowable settings are a maximum of 1200 m and 99
units.
RS485 Transmission distance limitation
Note2) When using a C-NET adapter, the maximum number of connected units is 32, and the baud rate
is limited to 19200 bps or less.
Note3) When using the communication cassette AFPG806(COM4), the baud rate of its RS485 port
should be defined by the Web Datalogger Unit and the dip switch in the communication cassette.
The baud rate for the RS232C port can be set by the Web Datalogger Unit only.
Note4) The termination resistance for the RS485 port in the communication cassette AFPG806(COM4)
is set by the dip switch in the communication cassette. There is no termination resistance at the
RS232C port.
Note5) When connecting the FPΣ, the response time, i.e. the time after receiving a command until a
response is returned, may be adjusted by the following instruction of the FPΣ if necessary.
(SYS1 MCOM1, WAITn n = 0 to 999 (Delay a response for [n] scan.)
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