Eurotherm

Instroduction

Eurotherm 3216 is a temperature controller. To talk to Eurotherm one need to use Modbus device serves. Connection to Modbus is done via the Serialline.

Tango Device Server settings

Eurotherm

#---------------------------------------------------------
# SERVER Eurotherm/gumstix, Eurotherm device declaration
#---------------------------------------------------------
Eurotherm/gumstix/DEVICE/Eurotherm: "gumstix/eurotherm/1"

Modbus

#---------------------------------------------------------
# SERVER Modbus/gumstix, Modbus device declaration
#---------------------------------------------------------
Modbus/gumstix/DEVICE/Modbus: "gumstix/modbus/1"
# --- gumstix/modbus/1 properties
gumstix/modbus/1->Protocol: RTU
gumstix/modbus/1->Serialline: "gumstix/serial/1"

Serialline

#---------------------------------------------------------
# SERVER Modbus/gumstix, Serial device declaration
#---------------------------------------------------------
Modbus/gumstix/DEVICE/Serial: "gumstix/serial/1"
# --- gumstix/serial/1 properties
gumstix/serial/1->Serialline: "/dev/ttyS0"
gumstix/serial/1->Timeout: 1000

Device Server

Attributes

• Temperature - (Read/Write)
• SetPoint - (Read/Write)
• Rate - (Read/Write)
• Mode - (Read/Write)
• CalculatedError - (Read)

Implementation

TemperatureController abstract class

Some information which I've found useful and are not included to "The Abstract Device Pattern" by Andy Gotz.

1. Declarations of attributes can be removed from MyConcrete.h
2. Since there is no such a method as init in MyAbstractDeviceClass, following lines from MyAbstractDeviceClass.cpp have to be commented out:

Tango::DeviceClass *_create_MyAbstractDevice_class(const char *name) 
{	 
         return MyAbstractDevice_ns::MyAbstractDeviceClass::init(name);	 
}

link if another directory

ln -s ../TemperatureReader/TemperatureReaderClass.cpp .

Rich Client Platform

Eurotherm RCP