SATEC PM180 Operation Manual - Manual (Page 45)

‎Chapter 4 Using HyperTerminal HyperTerminal Commands
PM180 Substation Automation Unit 43
COM1:
Protocol [MODBUS_RTU/MODBUS_ASCII/DNP3]: MODBUS_RTU
New:
Interface [232/422/485]: 232
New:
Device Address [1-247]: 1
New:
Baud Rate [300-115200]: 19200
New:
Data/Parity [7E, 8N, 8E]: 8N
New:
CTS Protocol [y/n]: N
New:
RTS Protocol [y/n]: N
New:
Transmission Delay [0-1000 ms]: 5
New:
Inter-character Timeout [1-1000 ms]: 4
New:
If you want to change a protocol, device address or another port setting, type your
new setting after the “New:” prompt and press Enter. To leave the setting unchanged,
just press Enter.
The following table lists available communication options:
Name Description Options Default
Protocol Communications protocol MODBUS_RTU - MODBUS
RTU
MODBUS_ASCII - MODBUS
ASCII
DNP3 - DNP3.0
MODBUS_RTU
Interface COM1-COM3 interface option 232, 422, 485 232 (COM1)
485 (COM2/3)
Device Address Device address 1-247 (MODBUS)
1-255 (DNP3.0)
1
Baud Rate Baud rate 300-115200 bps 19200 (COM1-
COM4)
57600 (COM5)
Data/Parity Data format 7E, 8N, 8E 8N
CTS Protocol When enabled, the port waits for the
CTS signal before sending data N - disabled
Y - enabled
N
RTS Protocol When enabled, the RTS signal is
asserted 5 ms before sending data
and during the transmission N/Y N
Transmission
delay The minimum time that should
elapse after the last request
character is received to start the
transmission. Increase it if your RS-
485 port or converter fails to switch
the direction of the transmission fast
enough so your application could
lose characters. 0-1000 ms 5
Inter-character
Timeout The maximum delay for which the
port should wait for a new character
to arrive while the receive line is
inactive. It is used with Modbus
RTU and DNP3.0 protocols to end a
reception of a message. 0-1000 ms 4
The Interface setting need not be changed. All serial ports currently work in half-
duplex mode regardless of the selected interface option.
The modem port (COM5) has a default baud rate of 57600 bps. It is recommended
not to decrease it in order not to affect the port performance.
The CTS and RTS protocol options are available only for the COM1 port when a
connection is made through the RS-232 connector (CTS protocol is not supported in
the standard firmware version).