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-(AI_10v12Bit)
This option changes the analog inputs on the RIO-472xx to -10V analog signals with 12
bit resolution. The range of the analog inputs can be changed with the AQ command, similar to
the RIO-4712x.
Part number ordering example:
RIO-47200-(AI_10v12bit)
-(AI_10v16Bit)
This option changes the analog inputs on the RIO-472xx to -10V analog signals with 16
bit resolution. The range of the analog inputs can be changed with the AQ command, similar to
the RIO-4712x.
Part number ordering example:
RIO-47200-(AI_10v16bit)
-(4-20mA)
This option installs resistors in parallel with each analog input. On RIO’s with 0-5V analog input
ranges the resistor is 237 ohms and on RIO’s with +/-10V analog input ranges the resistor value is
475 ohms (1%).
An RIO with +/-10V analog inputs should be configured for 0-10V range (AQ n, 4). With this
setting, the range for 4-20mA will be 1.9V-9.5V.
The equation for calculating the current for an RIO with +/-10V analog inputs is:
I
mA
=2.105 V
The equation for calculating the current for an RIO with 0-5V analog inputs is:
I
mA
=2.11 V
Where I
mA
= current in mA
V = Voltage reading from RIO
Part number ordering example:
RIO-47120-(4-20mA)
AO Option (SCB-48608)
The RIO-472xx by default does not have analog outputs however analog outputs can be added
using the AO option. When analog outputs are added, a new screw terminal board is added
called the SCB-48608 and is attached to the RIO-472xx at the factory (cannot be installed in the
field). This board supplies 8 analog outputs to the RIO-472xx.
The option can be ordered with ±10V configurable analog outputs in either 12 or 16 bits – same
as RIO-4712x, or with 0-5V analog outputs 12 bit resolution – same as RIO-4710x. See the DQ
command for specifics on the ±10V configurable options.
The ±12V terminals will provide ±12V output only when the outputs are ordered as ±10V
configurable outputs. Maximum current draw is 10mA each.
When then 0-5V analog outputs are ordered the ±12V terminals will be No Connects.
Appendix ▫ 90 RIO-47xxx Rev. 1.0r