Lika XAC77, Руководство пользователя

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XC77 • XAC77 - Encoder ATEX
5.5.1 Setting the node address via BUS (SAP55 service)
WARNING
SAP55 service can only be accomplished by a
Class 2 DP Master (DPM2)
. Class 1 Masters (DPM1)
cannot accomplish the SAP55 service.
With /AABT order code (see datasheet), AA address is preprogrammed via software and can be
modified by the user.
Lika encoders of the XAC77 series are designed to allow the slave address setting via a bus
command by means of the SAP55 service.
The Service Access Point SAP55 Set_Slave_Address allows to change the address stored in the
internal memory of a slave device. SAP55 service is part of the Profibus specifications and allows to
change the internal memory address in the event that the device does not provide switches for
setting its address or they are not usable. The internal memory address stored at factory by Lika
Electronic is “125”.
Setting the node address via Siemens STEP7
To change the node address stored in the
internal memory, open the
SIMATIC
Manager window and press the Assign
PROFIBUS Address…
command in the
PLC\PROFIBUS
menu. The
Assign PROFIBUS
Address
window will appear on the screen.
In the
Assign PROFIBUS Address
window select the
node address currently stored in the internal memory
(factory setting = 125) in the
Current PROFIBUS
Address
combo box and then select the new address
you want to set in the
New PROFIBUS Address
combo
box (for instance: “6”). Press the
Apply
button and then
the OK button to confirm.
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