310
Summary of the Analog Input Slave Units
Section 6-2
■
Input Range: 0 to 20 mA
Current of 0 to 20 mA is converted to data from 0000 to 1770 Hex (0 to 6000).
The input data range for which conversion is possible is
–
1 to +21 mA and
here the output data is FED4 to 189C Hex (
–
300 to +6300). When input data
is a negative voltage, it is expressed as the two's complement (hexadecimal)
and the output data for a disconnected line is the same as for an input of 0 mA
(0000 Hex).
■
Input Range: 4 to 20 mA
Current of 4 to 20 mA is converted to data from 0000 to 1770 Hex (0 to 6000).
The input data range for which conversion is possible is 3.2 to 20.8 mA and
here the output data is FED4 to 189C Hex (
–
300 to +6300). If the input value
falls below the input range such as for a disconnected line (input current is
less than 3.04 mA), a disconnected line detection function activates and data
is set to 7FFF Hex.
Input Range Settings
Setting of input range is performed using Analog Input Slave Unit DIP
switches, CX-Integrator, or Explicit message.
The method for setting the input range using CX-Integrator is described
below.
Please see "
11-1 CX-Integrator
" on page 481 regarding details for CX-Inte-
grator.
1,2,3...
1.
Turn ON the power to the CompoNet Slave Unit.
2.
Double-click the icon of the Slave to be set in the Network Configuration
Window to open the Configuration Window. (Alternatively, right-click the
Slave Unit icon and select
Parameters - Edit
from the menus.)
189C (6300)
1770 (6000)
0000 (0)
0 mA
FED4 (
−
300)
−
1 mA
20 mA 21 mA
Conversion data
Hexadecimal (decimal)
Current
189C (6300)
1770 (6000)
FED4 (
−
300)
0000 (0)
4 mA
3.2 mA
20 mA 20.8 mA
7FFF
3.04 mA
(Disconnection detected below 3.04 mA.)
Conversion data
Hexadecimal (decimal)
Current
Clamped above
20.8 mA.
Summary of Contents for CRT1 - 10-2009
Page 1: ...Cat No W457 E1 07 CompoNet Slave Units and Repeater Unit CRT1 Series OPERATION MANUAL...
Page 2: ......
Page 3: ...CRT1 Series CompoNet Slave Units and Repeater Unit Operation Manual Revised October 2009...
Page 4: ...iv...
Page 6: ...vi...
Page 10: ...x...
Page 16: ...xvi...
Page 24: ...xxiv Conformance to EC Directives 6...
Page 386: ...362 Units with Connectors Section 6 7...
Page 414: ...390 Temperature Input Units Section 7 5...
Page 430: ...406 Expansion Unit Specifications Section 8 2...
Page 494: ...470 Bit Slave Units with Compact Connectors Section 9 5...
Page 501: ...477 Repeater Unit Section 10 2 Dimensions 42 3 50 3 1 27 5 95 mm...
Page 502: ...478 Repeater Unit Section 10 2...
Page 508: ...484 CX Integrator Section 11 1...
Page 509: ...485 CX Integrator Section 11 1...
Page 602: ...578 Temperature Input Unit Functions Section 11 6...
Page 614: ...590 Device Maintenance Section 12 3...
Page 664: ...640 I O Power Supply Current Appendix E...
Page 672: ...648 Index...
Page 674: ...650 Revision History...