Collaboration diagram for Server version since 1.26.0.0 (MLC-FW: 14V22):

Note: Since firmware version 14V22 (MLPI-Server-Version: 1.26.0.0) a centralized permission management has been implemented in target controls XM2, L75 and VPx. Some permissions have been summarized in order to improve their usability. Additional information regarding the usage of older manifest files (i.e. accounts.xml) with newer server versions can be found in Manifest since server version 1.26.0.0.; Users of other CML controls (i.e. L25, L45, L65) have to use the old permissions as defined in Server versions before 1.26.0.0

List of valid permissions for mlpiIoLib. These permissions shall be assigned to the groups (i.e. in the group manifest file groups.xml) rather than the users.

Permission-Ident	Description
IO_INFO	Read inline and fieldbus master/slave lists and information - Allows to read inline and fieldbus master/slave lists and information.
IO_READ	Read input - Allows to read from inputs.
IO_UPDATE	Update I/Os - Allows to update I/Os.
IO_WRITE	Write output - Allows to write to outputs .

List of available functions in mlpiIoLib and the permissions required for their use.

Function	Server version	Permission-Ident
mlpiIoReadFieldbusMasterList	1.0.0.0	"IO_INFO"
mlpiIoReadFieldbusMasterInfo	1.0.0.0	"IO_INFO"
mlpiIoReadFieldbusSlaveList	1.0.0.0	"IO_INFO"
mlpiIoReadFieldbusSlaveInfo	1.0.0.0	"IO_INFO"
mlpiIoReadFieldbusSlaveInfos	1.0.0.0	"IO_INFO"
mlpiIoUpdateFieldbusIo	1.0.0.0	"IO_UPDATE"
mlpiIoReadFieldbusIo... (21x)	1.0.0.0	"IO_READ"
mlpiIoWriteFieldbusIo... (21x)	1.0.0.0	"IO_WRITE"

List of the old permissions of mlpiIoLib and their corresponding new permission.

Old permission	new Permission
MLPI_IOLIB_PERMISSION_ALWAYS	IMPLICIT
MLPI_IOLIB_PERMISSION_INFO	IO_INFO
MLPI_IOLIB_PERMISSION_UPDATE	IO_UPDATE
MLPI_IOLIB_PERMISSION_IO_READ	IO_READ
MLPI_IOLIB_PERMISSION_IO_WRITE	IO_WRITE