ADS services

Local process image task 1 port 800 or 801

Data can be read from and written to the local process image. If it is necessary for outputs to be written, it is important to ensure that they are not used by the local PLC, because the local controller will overwrite these values. The data are not associated with a watchdog, and therefore must not be used for outputs that would have to be switched off in the event of a fault.

Index group	Meaning	Index offset (value range)
0xF020	Inputs	0...2047
0xF030	Outputs	0...2047
0x4020	Flags	0...4095

ADS services

AdsServerAdsState

Data type (read only)	Meaning
String	Start - the local PLC is running Start - the local PLC is stopped

AdsServerDeviceState

Data type (read only)	Meaning
INT	0: Start - the local PLC is running 1: Start - the local PLC is stopped

AdsServerType

Data type (read only)	Meaning
String	BX PLC Server

Register Port 100

On the Bus Terminal Controllers of the BX series, and on the BCxx50, the ADS port number for register communication is fixed at 100.

Index Group	Index offset (value range)		Meaning
Index Group	Hi-Word	Lo-Word	Meaning
0 [READ ONLY]	0...127	0..255	Registers in the Bus Coupler Hi-Word, table number of the Bus Coupler Lo-Word, register number of the table
1...255	0...3	1-255	Register of the Bus Terminals Hi-Word, channel number Lo-Word, register number of the Bus Terminal

	Minimum timeout When reading the register, the time out of the ADS block has to be set to a time longer than 1 second.

	Setting the password When writing to the registers, the password has to be set (see the documentation for the particular Bus Terminal).