SET.4 of 6 SEL-311C Settings Sheet Application Setting 221-16
SEL-311C Relay Instruction Manual Date Code 20060320
Date________________
Protocol Settings (See Below)
Protocol (SEL, LMD, DNP, MBA, MBB, MB8A, MB8B,
MBGA, MBGB)
PROTO =
PROTOCOL SETTINGS: Set PROTO = SEL for standard SEL ASCII protocol. For SEL Distributed Port
Switch Protocol (LMD), set PROTO = LMD. Do not use M
IRRORED BITS
®
(MBx) protocol in Application
Settings. Refer to Appendix C: SEL Distributed Port Switch Protocol (LMD) for details on the LMD
protocol.
The following settings are used if PROTO = LMD.
LMD Prefix (@, #, $, %, &)
PREFIX =
LMD Address (1–99)
ADDR =
LMD Settling Time (0–30 seconds)
SETTLE =
Communications Settings
Baud (300, 1200, 2400, 4800, 9600, 19200, 38400)
(38400 is not available on Port 1.)
SPEED =
Data Bits (6, 7, 8)
(This setting is available when PROTO = SEL or LMD.)
BITS =
Parity (Odd [O], Even [E], or None [N])
(This setting is available when PROTO = SEL or LMD.)
PARITY =
Stop Bits (1, 2)
(This setting is available when PROTO = SEL or LMD.)
STOP =
Other Port Settings (See Below)
Time-out (0–30 minutes) T_OUT =
DTA Meter Format (Y, N)
DTA =
Send auto messages to port (Y, N)
AUTO =
Enable hardware handshaking (Y, N, MBT)
(MBT is available when PROTO = MBA or MBB.)
RTSCTS =
Fast Operate Enable (Y, N)
FASTO P =
OTHER PORT SETTINGS Set T_OUT to the number of minutes of serial port inactivity for an automatic
log out. Set T_OUT = 0 for no port time-out. This setting is available when PROTO = SEL or LMD.
Set DTA = Y to allow an SEL-DTA or SEL-DTA2 to communicate with the relay. This setting is
available when PROTO = SEL or LMD.
Set AUTO = Y to allow automatic messages at the serial port. This setting is available when
PROTO = SEL or LMD.
Set RTSCTS = Y to enable hardware handshaking. With RTSCTS = Y, the relay will not send
characters until the CTS input is asserted. Also, if the relay is unable to receive characters, it
deasserts the RTS line. Setting RTSCTS is not applicable to serial Port 1 (EIA-485) or a port
configured for SEL Distributed Port Switch Protocol.
Set FASTOP = Y to enable binary Fast Operate messages at the serial port. Set FASTOP = N to block
binary Fast Operate messages. Refer to Appendix D: Configuration, Fast Meter, and Fast Operate
Commands for the description of the SEL-311C Relay Fast Operate commands. This setting is
available when PROTO = SEL or LMD.
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