Omron PRT1-COM Operation Manual page 131

Analog Output Units
Components
I/O Unit Interface
Communications Connector 1
(on the Communication Unit side)
DIP Switch (Refer to page 121.)
On the left side of the Casette.
Pin 1 to 6:Output range
Pin 7: Reserved for system use (OFF)
Pin 8, 9: Clear at minimum/maximum output
Pin 10: Software setting enable/disable
DIP Switch Settings
TS Indicator (Refer to page 162.)
Shows the communications status of the I/O Unit interface.
Normal communications: Lit green
I/O Unit interface error:
During initialization, or with no power supply: Not lit
DIN Track Mounting Hook
The following diagram shows the functions of the DIP switch.
The following table summarizes the DIP switch settings. (All pins are factory-set
to OFF.)
Pin(s)
1 through 6 Output range
7 Reserved for system use
8, 9 Clear at minimum or clear
at maximum output setting
(See below.)
10 Reserved for system use
Note 1. The feature of setting the Input range by software can not be used with
PRT1-COM.
2. Make sure the I/O Unit power supplies (including the I/O Unit interface
power supply) are OFF when setting the DIP switch.
Lit red
PWR Indicator
Internal power being supplied: Lit green
No internal power supply:
U.ERR Indicator (Refer to page 163.)
Unit error:
Unit normal: Not lit
I/O Unit Interface
Communications Connector 2
(on the terminator side)
Cassette (Refer to page 166.)
Detach by pressing on the lower
part and pulling outwards.
Terminal Block
ON
Output Operating specifications
range
• Clear at minimum/maximum outputs
• Software setting enable/disable
Function Settings
Output range settings (See below.)
OFF
8
OFF OFF Clear at minimum
OFF ON
ON
ON
OFF
ON
Section
Not lit
Lit red
Meaning
Must be set to OFF.
9 Output
(see below)
Clear at maximum
(see below)
OFF Clear at 0 V
(for --10 to 10 V)
Clear at minimum
(other than the above)
ON Hold
Set the output range, and
clear at minimum/maximum
outputs with pins 1 to 9.
(factory-set)
Output range setting (see
note) by software.
7-2
121