Precision Digital PD865 - Manual (Page 31)

PD865 Snooper Modbus Serial Input Meter Instruction Manual
31
Master Mode (nmastr)
The Master mode contains the following submenus: select which
Function Code to use, the number of PVs to poll, the slave IDs and
register numbers, the type and format of data for PV1, the slave Polling
time and Response timeout.
Press Enter/Ack to
Make Selections
Press Up Arrow to
Scroll Through Choices
Press Menu to Exit at
any Time
Press Right Arrow to display and
change the setting for the number of
digits used for the Register Number.
t-resp
Enter Response
Timeout Value
t-poll
Enter Polling
Time Value
nmastr
funCod
fun 03 fun 04
data.1
short long float
binary bcd
unsigd signed
1234 4321 2143 3412
The last two Byte-Order settings are not
available for Short Integer data types.
reg.nbr
Enter Register
Number Value
5 dig 6 dig
SLAv.1d
1 d-pv1
Enter Slave ID
for PV1
PU.nbr
Enter Number
of Process
Variables
reg.Pv1
The Master ignores the decimal point setting for most slave devices that
specify a Short or Long integer. For example, a slave that is displaying
12.34 is read as 1,234. Floating point data may or may not utilize the
decimal point. Refer to the slave’s operating manual to make sure.
The Register Number range is based on the Function Code and the
number of digits selected. See the following table.
Function Code 5 Digit 6 Digit
03 40001 – 49999 400001 – 465536
04 30001 – 39999 300001 – 365536