Owner’s Guide 0300199-01 Rev. D
Chapter 6
Programming Examples
Earlier chapters explained how the tag configuration defines the way the module
operates. This chapter shows some basic programming which controls the
operation of the module. It also provides you with segments of ladder logic
specific to unique situations that might apply to your programming requirements.
Figure 6.1 illustrates some basic ladder logic commands which will allow you to:
• Program the initial configuration into the module.
• Copy data to user-defined tags.
• Reset the module.
• Make on-the-fly configuration changes.
• Unlatch alarms.
Additional ladder logic and configuration samples may also be found on our web
site: www.spectrumcontrols.com.
• Rung 0: This rung copies the configuration data (CTR8_Config) into the
module’s configuration image memory. This rung is required.
• Rung 1: This rung copies the input data received from the module’s input
memory into the CTR8_Input tag for monitoring and ladder usage. This
rung is required.
• Rung 2: This is an optional example rung indicating how to reset the
module via ladder logic.
• Rung 3: This is an optional example rung indicating how to send on-the-
fly configuration data to the module. This is useful if you would like to
change channel alarm or scaling tags without causing interruption in
channel updates.
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