Operation; Spel Fieldbus I/O Commands; Outputs Off By Emergency Stop And Reset Instruction - Epson RC620 Manual

3. Operation

3. Operation
This chapter describes how to use the Fieldbus I/O option after installing it.
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3.1 SPEL Fieldbus I/O Commands
Here are the main commands for Fieldbus I/O. Input/output command and function for
fieldbus I/O are same as these for the normal I/O. For details, refer to the Online Help or
SPEL
FbusIO_GetBusStatus
FbusIO_GetDeviceStatus Returns the status of the specified fieldbus device.
FbusIO_SendMsg
In
InW
IONumber
Off
On
Out
OutW
Sw
NOTE

Response times for Fieldbus I/O varies and depends on several factors, including baud
rate, scan rate, number of tasks, communication error, etc. EPSON RC+ does not
guarantee the real-time response for the fieldbus I/O and message inputs. When the fastest
and most consistent response times are required, please use EPSON Standard digital I/O,
which incorporates interrupt driven inputs and outputs.

3.2 Outputs Off by Emergency Stop and Reset Instruction

You can configure the system so that all outputs including the fieldbus outputs will be
turned off when the emergency stop occurs and when a Reset instruction is executed. For
details of the configuration, refer to the chapter SPEL+ Options in the EPSON RC+ User's
Guide.
NOTE
 A command that was issued just before an emergency stop can be executed after the
emergency stop condition is cleared. If the outputs from the fieldbus involve risk, the
"Outputs off during Emergency Stop" option should be enabled to remove all power to
output devices when an emergency stop occurs.
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Language Reference manual.
Returns the status of the specified fieldbus.
Sends an explicit message to a device and returns the reply.
Returns the status of an 8-bit input port.
Returns the status of a 16-bit input port.
Returns the I/O port number of the specified Fieldbus I/O
label.
Turns an output off.
Turns an output on.
Simultaneously sets eight output bits.
Simultaneously sets 16 output bits.
Returns the status of one input bit.
RC620 Option Fieldbus I/O Rev.8