X20DIF371 B&R

In addition to the registers described in the register description, the module has additional general data points.

These are not module-specific but contain general information such as serial number and hardware variant.

General data points are described in section "Additional information - General data points" in the X20 system user's

manual.

Description:

11.2 Function model 0 - Standard

Read Write Register Fixed offset Name Data type

Cyclic Acyclic Cyclic Acyclic

Configuration

18 - ConfigOutput01 (input filter) USINT ●

Communication

- 1 DigitalInput UINT

Input status of digital inputs 1 to 8 USINT

DigitalInput01 Bit 0

... ...

0 1

DigitalInput08 Bit 7

●

Input status of digital inputs 9 to 16 USINT

DigitalInput09 Bit 0

... ...

1 2

DigitalInput16 Bit 7

●

Fixed modules require their data points to be in a specific order in the X2X frame. Cyclic access occurs according

to a predefined offset, not based on the register address.

Acyclic access continues to be based on the register numbers.

11.3 Function model 254 - Bus Controller

Read Write Register Offset1) Name Data type

Cyclic Acyclic Cyclic Acyclic

Configuration

18 - ConfigOutput01 (input filter) USINT ●

Communication

Input status of digital inputs 1 to 8 USINT

DigitalInput01 Bit 0

... ...

0 0

DigitalInput08 Bit 7

●

Input status of digital inputs 9 to 16 USINT

DigitalInput09 Bit 0

... ...

1 1

DigitalInput16 Bit 7

●

1) The offset specifies where the register is within the CAN object.

11.3.1 Using the module on the bus controller

Function model 254 "Bus controller" is used by default only by non-configurable bus controllers. All other bus

controllers can use other registers and functions depending on the fieldbus used.

For detailed information, see section "Additional information - Using I/O modules on the bus controller" in the X20

user's manual (version 3.50 or later).

11.3.2 CAN I/O bus controller

The module occupies 2 digital logical slots on CAN I/O.

11.4 Digital inputs

Unfiltered

The input state is collected with a fixed offset to the network cycle and transferred in the same cycle.

Filtered

The filtered status is collected with a fixed offset to the network cycle and transferred in the same cycle. Filtering

takes place asynchronously to the network in multiples of 200 µs with a network-related jitter of up to 50 µs.

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