Emerson Mentor MP User Manual

Parameter
description
protocol
Performance
Menu
11
These
parameters
define
the
parameters
that
reside
in
the
programmable
area
in
menu
0.
This
parameter
may
be
used
to
scale
the
value
of
Pr
0.20
seen
via
the
LED
keypad
(not
via
serial
comms).
Any
parameter
routed
to
Pr
0.20
may
be
This
parameter
defines
which
menu
0
parameter
is
displayed
on
power-up.
Used
to
define
the
unique
address
for
the
drive
for
the
serial
interface.
The
drive
is
always
a
slave.
This
parameter
defines
the
communications
protocol
used
by
the
485
comms
port
on
the
drive.
This
parameter
can
be
changed
via
the
drive
keypad,
even
parity;
Modbus
RTU
uses
8
data
bits,
2
stops
bits
and
no
parity.)
ANSIx3.28
protocol
Parameter
structure
Keypad and
format
Advanced parameter
descriptions
Serial comms
5.12 Menu 11: General drive setup
scaled. Scaling is only applied in the status and view modes. If the parameter is edited via the keypad it reverts to its un-scaled value during editing.
ANSI
When the ANSI protocol is used the first digit is the group and the second digit is the address within a group. The maximum permitted group number
is 9 and the maximum permitted address within a group is 9. Therefore, (Pr 11.23 = {Si02, 0.67} ) is limited to 99 in this mode. The value 00 is used to
globally address all slaves on the system, and x0 is used to address all slaves of group x, therefore these addresses should not be set in this
parameter.
Modbus RTU
When the Modbus RTU protocol is used addresses between 0 and 247 are permitted. Address 0 is used to globally address all slaves, and so this
address should not be set in this parameter.
via a Solutions Module or via the comms interface itself. If it is changed via the comms interface, the response to the command uses the original
protocol. The master should wait at least 20 ms before sending a new message using the new protocol. (Note: ANSI uses 7 data bits, 1 stop bit and
Full details of the CT implementation of ANSIx3.28 are given in Chapter 6 Serial communications protocol.
Modbus RTU protocol
Full details of the CT implementation of Modbus RTU are given in Chapter 6 Serial communications protocol.
Mentor MP Advanced User Guide 145
Issue Number: 4 www.onxcontrol.com
11.23
{Si02, 0.67}
Serial address
Coding
Bit
SP
FI
DE
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
Range
00 to 247
Default
1
Update rate
Background read
11.22
Parameter displayed at power-up
Coding
Bit
SP
FI
DE
TE
VM
DP
ND
RA
N
C
NV
PT
US
RW
BU
PS
2
1
1
1
1
Range
Pr 0.00 to Pr 0.90
Default
Pr 0 . 40
Update rate
Background read
11.24
Serial mode
Coding
Bit
SP
FI
DE
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
1
1
1
1
Range
0 to 2
Default
1
Update rate
Background read
11.21
Parameter scaling
Coding
Range
Bit
SP
FI
DE
TE
VM
DP
ND
RA
NC
NV
PT
US
RW
BU
PS
3
1
1
1
0.000
to
9.999
Default
1.000
Update rate
Background read
Parameter value
String
Comms mode
0
AnSI
ANSIx3.28
protocol
1
rtU
Modbus
RTU
protocol
2
Lcd
Modbus
RTU
protocol,
but
only
with
an
LCD
keypad

Emerson Mentor MP Specifications

General

Brand	Emerson
Model	Mentor MP
Category	DC Drives
Language	English