Setup and adjustments
Setting the device address
The PCA3613 is a device on an MS/TP (SA or FC) bus. Before you operate PCA controllers on a bus,
you
must
set a valid and unique device address for each controller on the bus. You set a PCA3613
controller's device address by setting the positions of the switches on the DIP switch block at the
top of the controller . Device addresses 4 through 127 are the valid addresses for these controllers
on an MS/TP FC Bus.
Figure 9: Device address DIP switch block set to address 21
Note:
Field controllers ship with switch 128 ON and the remainining adress switches off
rendering the controllers wired subordinate devices, which do not operate on MSTP buses, but
do not interfere with bus operation. Set a valid and unique device address on the controller
before applying power to the controller on the bus.
To set the device addresses on PCA controllers, complete the following steps:
1. Set
all
of the switches on the address DIP switch block (128 through 1) to OFF.
2. Set one or more of the seven address switches (64 though 1) to ON, so that the sum of the
switch numbers set to ON equals the intended device address.
Set the highest number switch that is less than or equal to the intended device address to ON.
Then continue setting lower numbered switches until the totalequals theintendedaddress.
Forexample, if the intended device address is 21, set switch 16 to ON first, then set switch 4
ON, followed by switch 1 (16+4+1= 21). See Figure 9.
3. Set switch 128 to ON only for controllers on an FX-ZFR Series Wireless Field Bus application. For
all hard-wired SA and FC bus applications, ensure that switch 128 is set to Off
Note:
Do not connect an FX-PC controller with switch128set to ON toanactive(hard-wired)
SA or FC bus. When a controller with switch 128 set to ON and a device address from 4 to
127 is connected to a wired field bus, the entire field bus is rendered inoperable until the
controller is disconnected or switch 128 is set to Off.
Refer to the
FX-ZFR Wireless Field Bus System Technical Bulletin (LIT-12011660)
for more informa-
tion on device addresses in wireless applications
4. Write each controller's device address on the white label below the DIP switch block on the
controller's cover.
The following table describes the FC bus and SA bus devices addresses for controllers commu-
nications bus applications.
PCA3613 Advanced Application Programmable Controller Installation Instructions
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