PM172 Quick Start Guide
12
Series PM172 Powermeters
4. In the Sampling Rate box, select a rate at which PAS updates data on
your screen when you continuously poll the device in the PAS Data
Monitor.
The communication protocol and port settings in PAS must match the settings
made in your device.
COM1 Settings
Code Parameter Options Description
Prot Communications protocol ASCII, rtu*, dnP3 ASCII, Modbus RTU or DNP3.0 protocol
rS
Port Interface, depends on
order
232 = RS-232
485 = RS-485
422 = RS-422
dial = Dial-up Modem
Eth.= Ethernet
For non-serial interfaces this is not changeable,
it is automatically detected by the meter
Addr Device Address
Modbus: 1 (default) -247
DNP3.0: 0 (default) -255
bAud Baud rate 300 - 115,200 bps (19,200 bps*)
dAtA Data format
7E, 8E (7/8 bits, even parity), 8N* (8 bits, no parity)
7E data format should not be used with the Modbus RTU and DNP3
protocols
H.Sh Handshaking (flow control) nonE*=no flow control
SOFt=software (XON/XOFF)
HArd=hardware (CTS)
rtS RTS mode nonE* = not used
Forc = RTS is permanently asserted
CtrL = RTS is asserted during the transmission
COM2 Settings
Code Parameter Options Description
Prot Communications protocol
Rtu* = Modbus RTU
ASCII = Modbus ASCII
dnP3 = DNP3
The communications protocol supported by the
port
rS Port Interface
485* = RS-485
422 = RS-422
Addr Address
Modbus: 1*-247
DNP3: 0–65532
Device network address
bAud Baud rate
300-115,200 bps
(19,200 bps*)
The port baud rate.
dAtA Data format and parity 7E, 8N*, 8E
7E data format should not be used with the
Modbus RTU and DNP3 protocols