Driver objects

The following object types are available in this driver:

Objects for process variables in the control system

Driver object type	Channel type	Read / Write	Supported data types	Comment
Alarm stack	97	L	STRING
Analog Input	10	L / S	REAL, BOOL, DINT, UDINT, USINT, INT, UINT, SINT, STRING
Coil	65	L / S	BOOL
Device identification	68	L	STRING
Device status	24	L	BOOL, USINT
Holding Register	8	L / S	REAL, BOOL, DINT, UDINT, USINT, INT, UINT, SINT, STRING
Input status	66	L	BOOL
Present single register (FC 6)	67	L / S	UINT
Driver variable	35	L / S	BOOL, SINT, USINT, INT, UINT, DINT, UDINT, REAL, STRING	Variables for the statistical analysis of communication. Find out more in the chapter about the Driver variables

Object	Read (Function code hex/dec)	Write (Function code)	Comment
Bit-Holding Regs	J (0x3 / 3)	J (0x10 / 16)	bit one-step addressing (linear) Addressing: one-step via OFFSET (Output variable)
Byte-Holding Regs	J (0x3 / 3)	J (0x10 / 16)	8 bit byte one-step addressing (linear) (Output variable)
Wort-Holding Regs	J (0x3 / 3)	J (0x10 / 16)	16 bit word one-step addressing (linear) (Output variable)
Double word Holding Regs	J (0x3 / 3)	J (0x10 / 16)	32 bit doubleword one-step addressing (linear) (Output variable)
Float-Holding Regs	J (0x3 / 3)	J (0x10 / 16)	32 bit float one-step addressing (linear) (Output variable)
Input Register Word	J (0x4 / 4)	J (0x11 / 17)	From version 5.00 16 bit word one-step addressing (linear) (Input variable)
Input Register Float	J (0x4 / 4)	J (0x11 / 17)	From version 5.00 32 bit float one-step addressing (linear) (Input variable)
Status bit	Y	N
Status byte	Y	N
COIL-Bit	J (0x1 / 1)	J (0x5 / 5	bit one-step addressing (linear) (Input variable)
Input Status-Bit	J (0x2 / 2)	N	bit one-step addressing (linear) (Input variable)
Preset Single Register (ab.V6.x)	N	J (0x3 / 6)
Device identification (from V6.x)	J (0x2B / 43)	N