Omron E5ZN-DRT, Operation Manual

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Part Names and Functions Section 3-1
Rear Panel DIP Switch
Use the rear panel DIP switch to set the Unit connection configuration and I/O
allocation to either simple I/O allocation or I/O allocation from the Configura-
tor.
Setting Simple I/O
Allocation Use the rear panel rotary switch to set the highest unit number of the Temper-
ature Controllers connected to the DeviceNet Communications Unit. The con-
nection configuration will be automatically created and the I/O will be
automatically allocated for this setting.
With simple I/O allocation, when the DeviceNet Communications Unit is
started, it checks the communications status with the Temperature Controllers
up to the Temperature Controller with the highest unit number (power must be
supplied to the Terminal Unit). After checking the communications status, the
Temperature Controllers that are communicating normally are registered in
the connection configuration. IN and OUT Areas for Temperature Controller
data can also be allocated for the total number of connected Temperature
Controllers.
Setting I/O Allocations
from the Configurator The Configurator can be used to allocate I/O and set the connection configu-
ration in the DeviceNet Communications Unit. The settings are recorded in the
non-volatile memory of the DeviceNet Communications Unit, so by setting
only once, the same settings can be used the next time they are required (the
connection configuration and I/O allocations are not set as factory settings.)
For details on simple I/O allocation, and setting I/O allocations with the Con-
figurator, refer to SECTION 4 Remote I/O Communications.
Note 1. Always turn OFF the DeviceNet communications power supply and Termi-
nal Unit power supply before performing setting operations.
2. Pin 2 must always be OFF.
3. When pin 1 is OFF (I/O allocations set from the Configurator), if the con-
nection configuration is not registered the MS indicator will flash green.
When the connection configuration is set from the Configurator, the De-
viceNet Communications Unit will automatically be reset and after starting
normally, the MS indicator status will be lit green.
4. Pins 1 and 2 are both OFF as the factory setting.
Rear Panel Rotary Switch
Use this switch to set the highest unit number of the connected Temperature
Controllers. This setting is enabled when pin 1 of the rear panel DIP switch in
ON (simple I/O allocation) only.
Pin 1 I/O allocation setting switch
OFF I/O allocation set from the Configurator
ON Simple I/O allocation setting
O N
1
2
I/O allocation setting switch
Not used (leave set to OFF).
0
78
9A
BCDEF
12
3 45
6
Highest unit number connected