/*---------------------------------------------------------------------------
modbus.h

Communication routines for Eurotherm ModBus instruments
  
Markus Zolliker, Aug 2005
----------------------------------------------------------------------------*/

#ifndef MODBUS_H
#define MODBUS_H

#include "ease.h"

#define MODBUS_BAD_CRC -3090

typedef enum {modBusFloat, modBusInt, modBusTime} ModBusType;

int ModBusHandler(void *eab);
void ModBusPutFloats(EaseBase *eab, int adr, int npar, float val[]);
void ModBusRequestFloats(EaseBase *eab, int adr, int npar);
float ModBusGetFloat(EaseBase *eab, int adr);
void ModBusRequestValue(EaseBase *eab, int adr);
float ModBusGetValue(EaseBase *eab, int type);
void ModBusPutValue(EaseBase *eab, int adr, int type, float val);

#endif