4.222
SEL-700G Relay
Instruction Manual
Date Code 20170814
Protection and Logic Functions
Port Settings (SET P Command)
PORT 4
Set the speed, data bits, parity, and stop bits settings to match the serial port
configuration of the equipment that is communicating with the serial port.
After port timeout minutes of inactivity on a serial port at Access Level 2, the
port automatically returns to Access Level 0. This security feature helps
prevent unauthorized access to the relay settings if the relay is accidentally left
in Access Level 2. If you do not want the port to time out, set Port Timeout
equal to 0 minutes.
Set PROTO := SEL (standard SEL ASCII protocol), MOD (Modbus RTU
protocol), or one of the M
IRRORED
B
ITS
protocols, as necessary for your
application. For detailed information, refer to Appendix C: SEL
Communications Processors, Appendix E: Modbus RTU Communications,
and Appendix I: M
Use the MBT option if you are using a Pulsar MBT9600 Four Wire Modem
(see Appendix I: M
Communications for more information). With
this option set, the relay transmits a message every second processing interval,
and the device deasserts the RTS signal on the EIA-232 connector. Also, the
device monitors the CTS signal on the EIA-232 connector, which the modem
deasserts if the channel has too many errors. The modem uses the device RTS signal
to determine whether the MB or MB8 M
IRRORED
B
ITS
protocol is in use.
Set the AUTO := Y to allow automatic messages at a serial port.
The relay EIA-232 serial ports support software (XON/XOFF) flow control. If
you want to enable support for hardware (RTS/CTS) flow control, set the
RTSCTS setting equal to Y.
Set FASTOP := Y to enable binary Fast Operate messages at the serial port.
Set FASTOP := N to block binary Fast Operate messages. Refer to
FAST OP MESSAGES
Y, N
FASTOP := N
MODBUS SLAVE ID
1–247
SLAVEID := 1
Table 4.78
Rear-Panel Serial Port (EIA-232) Settings
(Sheet 2 of 2)
Setting Prompt
Setting Range
Setting Name :=
Factory Default
Table 4.79
Rear-Panel Serial Port (EIA-232/EIA-485) Settings
Setting Prompt
Setting Range
Setting Name :=
Factory Default
PROTOCOL
SEL, MOD, DNET, DNP, EVMSG,
PMU, MBA, MBB, MB8A, MB8B,
MBTA, MBTB
PROTO := SEL
COMM INTERFACE
232, 485
COMMINF := 232
SPEED
300–38400 bps
SPEED := 9600
DATA BITS
7, 8 bits
BITS := 8
PARITY
O, E, N
PARITY := N
STOP BITS
1, 2 bits
STOP := 1
PORT TIMEOUT
0–30 min
T_OUT := 5
SEND AUTOMESSAGE
Y, N
AUTO := N
HDWR
HANDSHAKING
Y, N
RTSCTS := N
FAST OP MESSAGES
Y, N
FASTOP := N
MODBUS SLAVE ID
1–247
SLAVEID := 1
NOTE:
For additional settings when
PROTO := MBxx, see Table I.5 as well
as M
is not MBxx on any of the
communications ports) on
page SET.36
.
For additional settings when
PROTO := DNP, see Table D.7 for a
complete list of the DNP3 session
settings.
Содержание SEL-700G Series
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