User Manual

Chapter 4: Using Your Input Module 31
Table 14. Data format definitions
Selected Actual Signal Limits Count Limits
Data Format Input Range Min. Max. Min. Max.
Engineering Units ±10 V -10.25 V +10.25 V -10250 +10250
0–10 V -0.50 V +10.25 V -500 +10250
0–5 V -0.50 V +5.50 V -500 +5500
1–5 V +0.50 V +5.50 V +500 +5500
0–20 mA 0.0 mA +20.5 mA 0 +20500
4–20 mA +3.5 mA +20.5 mA +3500 +20500
Scaled for PID ➂ ±10 V -10 V +10 V 0 +16383
0–10 V 0 V +10 V 0 +16383
0–5 V 0 V +5 V 0 +16383
1–5 V +1 V +5 V 0 +16383
0–20 mA 0 mA +20 mA 0 +16383
4–20 mA +4 mA +20 mA 0 +16383
Proportional Counts ±10 V -10.25 V +10.25 V -32768 +32767
0–10 V -0.50 V +10.25 V -32768 +32767
0–5 V -0.50 V +5.50 V -32768 +32767
1–5 V +0.50 V +5.50 V -32768 +32767
0–20 mA 0.0 mA +20.5 mA -32768 +32767
4–20 mA +3.5 mA +20.5 mA -32768 +32767
1746-NI4- ±10 V -10 V +10 V -32768 +32767
compatible➀ 0–10 V 0 V +10 V 0 +32767
0–5 V 0 V +5 V 0 +16384
1–5 V +1 V +5 V +3277 +16384
0–20 mA 0 mA +20 mA 0 +16384
4–20 mA +4 mA +20 mA +3277 +16384
User-defined ±10 V -10.25 V +10.25 V
scale A (and B) 0–10 V -0.50 V +10.25 V
0–5 V -0.50 V +5.50 V See note ➁.
1–5 V +0.50 V +5.50 V
0–20 mA 0.0 mA +20.5 mA
4–20 mA +3.5 mA +20.5 mA
➀ Provides direct compatibility with the 1746-NI4 module.
➁ For user-defined scale A (or B ), the data in output words 4 and 5 (or 6 and 7) determine
the count limits. See the next subsection, Setting The User-Defined Scale Limits , for
information on the User-Defined Scale data format .
➂ Note: Modules marked Series B Revision 1.00 or earlier had different signal limits for the
Scaled for PID data format (see the Owner’s Guide that came with your module).