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14-10
14.6 Specifications of Optional Functions
Alarm Output Relays (/A1, /A2, /A3) :
An alarm signal is output from the rear panel as a relay contact signal.
/A1 and /A2 includes remote control functions (/R1)
Relay contact rating :
250 VAC (50/60 Hz)/3 A, 250 VDC/0.1 A (for resistance load)
Terminal configuration :
SPDT (NO-C-NC). Energized-at-alarm/deenergized-at-alarm,
AND/OR, and hold/non-hold actions are selectable.
Batch Function (/BT1) :
Information added to the measured/computed data :
Serial number of the RD-MV, Application name, Supervisor
name, Manager name, Batch number, Lot number, Comment
information
Identifying operators (users) by using the key login function :
User names that are already registered cannot be specified.
The combinations of user IDs and passwords that are identical
to those that have been registered in the past cannot be
specified.
Messages :
Messages 1 through 3 can be changed in the operation mode.
Confirming the stored data :
Batch information can be shown on the memory information
display.
Serial Communication Interface (/C2, /C3) :
This interface allows the host computer to control and make settings for the recorder as
well as receive data from the recorder.
Connection :
EIA RS-232 (/C2) or RS-422-A/485 (/C3)
Protocols :
Omega private protocol, Modbus protocol
Synchronization method : Start-stop asynchronous transmission
Connection method (RS-422-A/485) :
4-wire half-duplex multi-drop connection
(1 : N where N = 1 to 31)
Transmission speed :
1200, 2400, 4800, 9600, 19200 or 38400 bps
Data length :
7 or 8 bits
Stop bit :
1 bit
Parity :
Odd, even, or none
Communication distance (RS-422-A/485) :
Up to 1200 m
Communication mode :
ASCII for input/output for control and setting
ASCII or binary for output of measured data
Modbus :
Mode :
RTU SLAVE
Data type :
Data read, data write
Wiring :
4 wires (for RS-422-A/485)
Fail/Memory End Output (/F1) :
The relay contact output on the rear panel informs of the occurrence of a system error.
Another relay contact output informs of the time until end of the internal memory space
(selectable from 1, 2, 5, 10, 20, 50 or 100 hours) before the data is overwritten, or of the
time when the remaining space on the external storage medium reaches to 10% of
whole capacity.
Relay contact rating :
250 VAC (50/60 Hz)/3 A
250 VDC/0.1 A (for resistance load)
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