Section 15. Alternate Telecoms Resource Library
142
•
05 Force Single Coil
•
15 Force Multiple Coils
•
16 Force Multiple Registers
15.1.3.5 Reading Inverse Format Registers
Some Modbus devices require reverse byte order words (CDAB vs. ABCD).
This can be true for either floating point, or integer formats. While other
CRBasic dataloggers, such as the CR1000, can use the MoveBytes() instruction
to output reverse byte order words, the CR200(X) does not have that capability.
If reverse byte order words are required, either the master has to make an
adjustment, which is sometimes possible, or the CR200(X) needs to replaced
with a datalogger that supports the MoveBytes() instruction.
15.1.4 Troubleshooting
Test Modbus functions on the CR200(X) with third party Modbus software.
Further information is available at the following links:
•
www.simplyModbus.ca/FAQ.htm
(
http://www.simplymodbus.ca/faq.htm
)
•
www.Modbus.org/tech.php
(
http://www.modbus.org/tech.php
)
•
www.lammertbies.nl/comm/info/modbus.html
(
http://www.lammertbies.nl/comm/info/modbus.html
)
Summary of Contents for CR200
Page 32: ...Section 2 Quickstart Tutorial 22 ...
Page 45: ...Section 3 Overview 35 3 3 Specifications ...
Page 46: ...Section 3 Overview 36 ...
Page 58: ...Section 4 Sensor Support 48 ...
Page 62: ...Section 5 Measurement and Control Peripherals 52 ...
Page 78: ...Section 8 CR200 X Configuration 68 ...
Page 102: ...Section 9 Programming 92 ...
Page 138: ...Section 11 Programming Resource Library 128 ...
Page 156: ...Section 16 Support Software 146 ...
Page 160: ...Section 17 Care and Maintenance 150 ...
Page 167: ...Section 18 Troubleshooting 157 18 3 3 2 Charging Circuit Test Solar Panel ...
Page 168: ...Section 18 Troubleshooting 158 18 3 3 3 Charging Circuit Test Transformer ...
Page 169: ...Section 18 Troubleshooting 159 18 3 3 4 Adjusting Charging Circuit Voltage ...
Page 170: ...Section 18 Troubleshooting 160 ...
Page 184: ...Appendix A Glossary 14 ...
Page 190: ...Appendix B Status Table and Settings 20 ...
Page 192: ...Appendix C Serial Port Pin Outs 22 ...
Page 211: ......