MBConstants (GVL)¶

InOut:

Scope	Name	Type	Initial	Comment
Constant	MAX_CHANNELS	UINT	10	Pool of available Channels for each Slave
	MAX_REGISTERS	UINT	100	Pool of available Registers shared among the available Channels (not used currently)
	MAX_SLAVES	UINT	32	Pool of MB Serial Slaves
	MAX_BUFFER_WORDS	UINT	(MAX_SLAVES * 128)	READ and WRITE Buffer size
	MAX_INITS	UINT	20	Pool of initialisation values for each Slave that get entered on the “Slave Init Page”
	MODULE_TYPE_MB_MASTER	WORD	90	Device type IDs
	MODULE_TYPE_MB_SLAVE	WORD	91
	MODULE_TYPE_MB_PORT	WORD	92
	MODULE_TYPE_M238_SL1	WORD	40101
	MODULE_TYPE_M238_SL2	WORD	40102
	PARAM_ID_BAUDRATE	UINT	9200	Port Parameter IDs as read from Modbus Configurator
	PARAM_ID_MEDIUM	UINT	9201
	PARAM_ID_PARITY	UINT	9202
	PARAM_ID_DATABITS	UINT	9203
	PARAM_ID_STOPBITS	UINT	9204
	PARAM_ID_TRANSMISSION	UINT	9000	Master Parameter IDs as read from Modbus Configurator
	PARAM_ID_RESPONSETIMEOUT	UINT	9001
	PARAM_ID_TIMEBETWEENFRAMES	UINT	9002
	PARAM_ID_SERIALLINE	UINT	9003
	PARAM_ID_SLAVEADDRESS	UINT	9100	Slave Parameter IDs as read from Modbus Configurator
	PARAM_ID_SLAVETIMEOUT	UINT	9101
	PARAM_ID_FIRST_ITEM_ID	UINT	9300
	PARAM_ID_DEFAULTVALUES	UINT	7100
	FIRST_CYCLE	USINT	0	Commands for the state machines of the FBs
	INIT_VALUES	USINT	1
	IDLE	USINT	66
	TRANSMISSION_RTU	USINT	0	Static identifiers
	TRANSMISSION_ASCII	USINT	1
	PARITY_EVEN	USINT	2
	PARITY_ODD	USINT	3
	PARITY_NONE	USINT	4
	TRIGGER_CYCLIC	USINT	5
	TRIGGER_RISING_EDGE	USINT	6
	MEDIUM_RS232	USINT	7
	MEDIUM_RS485	USINT	8
	MEDIUM_ETH	USINT	9
	ACCESS_READ	USINT	10
	ACCESS_READWRITE	USINT	11
	ACCESS_WRITE	USINT	12
	ACCESS_WRITE_SPLITTED	USINT	13	Used if a device does not support READWRITE
	ACCESS_READ_SPLITTED	USINT	14	Used if a device does not support READWRITE
	REGISTER_INPUT_BIT	USINT	10	BIT register for read access
	REGISTER_COILS_BIT	USINT	11	BIT register for read/write access
	REGISTER_INPUT_WORDS	USINT	12	WORD register for read/write access
	REGISTER_HOLDING_WORDS	USINT	13	WORD register for read access
	CLASSID_CCmpIoDrvModbusSerial	DWORD	16#1008	Used for the logger to identify messages from the IoDrvModbus
	CLASSID_LOGGER	UDINT	1
	LIBRARY_VERSION	UDINT	16#3030002