PI E-727 User Manual

User Manual
E727T0005, valid for E-727
BRO, 2019-06-28
Physik Instrumente (PI) GmbH & Co. KG, Auf der Roemerstrasse 1, 76228 Karlsruhe, Germany Page 92 / 240
Phone +49 721 4846-0, Fax +49 721 4846-1019, Email info@pi.ws, www.pi.ws
Deactivation of Unused Analog Input Lines
Analog input lines which are not used should be deactivated to avoid interferences. To deactivate
an unused analog input line, the following settings must be done:
Exclude the analog input line from the calculation of axis positions by setting its coefficients for all
axes to zero in the input matrix (Position from Sensor n parameters).
Make sure that the analog input line is not connected to an axis for control value generation. This
means that the value of the ADC Channel For Target parameter, ID 0x06000500, for all axes must
be different from the ID of the analog input line.
Example: The input signal channel 7 (pins 5 and 12 of Analog I/O) of an E-727.3CDA model is to be
deactivated temporarily (i.e. in volatile memory). The input matrix coefficients of that channel
correspond to the Position from Sensor 7 parameters (ID 0x07000506) for axis 1 to axis 3.
Send:
SPA 1 0x07000506 0 2 0x07000506 0 3 0x07000506 0
to exclude the analog input line from the axis position calculation. Then send:
SPA? 1 0x06000500 2 0x06000500 3 0x06000500
to check the RAM settings for the axis control value generation. The response must be different
from 7 for all axes, i.e. if the E-727 replies
1 0x06000500=7
2 0x06000500=3
3 0x06000500=0
then input signal channel 7 is still connected to axis 1, and you have to send
SPA 1 0x06000500 0
to disconnect it.
Analog-Input-Related Commands and Parameters
Command
Description
Notes
AOS
Set Analog Input Offset
Adds an offset value to the analog input scaled value
(Analog Target Offset, ID 0x06000501). This offset is
active as long as the analog input is enabled as control
source for this axis.
AOS?
Get Analog Input Offset
Reads the current value of Analog Target Offset,
parameter ID 0x06000501, from volatile memory
SEP
Set Nonvolatile
Memory Parameters
Can be used to set the power-on default configuration for
analog input usage.
SEP?
Get Nonvolatile
Memory Parameters
Reads the current parameter values from nonvolatile
memory
SPA
Set Temporary Memory
Parameters
Can be used to set a temporary configuration for analog
input usage.
SPA? Get Temporary
Memory Parameters
Reads the current parameter values from volatile memory
(RAM)

PI E-727 Specifications

General

Brand	PI
Model	E-727
Category	Controller
Language	English