The IO_Module function block enables communication with the OX024-x10 expansion module so that
additional outputs can be used.
Configure CAN
Set up CAN so that CAN messages can be transmitted to and from the I/O module.
Input
Type
Range
Description
CAN
Bus
——
In the GUIDE template, identify the CAN bus that contains CAN messages to and from the I/O
module. Route this bus to the CAN input on this function block.
CAN messages sent from the I/O module to the function block contain information about the
I/O modules’ inputs, outputs and configuration. CAN messages sent to the I/O module from the
function block set outputs and configurations.
Baudrate U32
50000–1000000
The Baudrate is the speed of the CAN Port.
Port Port
——
Assigns the hardware CAN port that transmits the data.
AddrMode
U8
0–2
I/O module addressing mode.
0: Variable ID addressing mode. The I/O module Tx and Rx message identifiers are determined
by the I/O module measuring the voltage on its CAN shield input and matching that value with a
predefined range and matching identifiers in the
I/O Module CAN Message Identifiers
table. The
CAN messages use 11 bit identifiers in this mode.
1: Predefined ID addressing mode. The I/O module Tx and Rx message identifiers are
determined by Node/N1. These identifiers are selected by matching to the N1 value in the
I/O
Module CAN Message Identifiers
table. The CAN messages use 11 bit identifiers in this mode.
2: Fixed ID addressing mode. The I/O module Tx and Rx message identifiers are determined
directly by setting Tx ID and Rx ID. The CAN messages use either 11 bit or 29 bit identifiers in
this mode, as determined by Frame.
Tx ID
U32
0x00–0x1FFFFFFF
Tx ID is the CAN message identifier used by the function block for sending messages to the I/O
module when using the Fixed ID addressing mode.
When using the service tool to configure the I/O module, this value corresponds to the Rx
parameter saved on the I/O module.
Rx ID
U32
0x00–0x1FFFFFFF
Rx ID is the CAN message identifier used by the function block for receiving messages from the
I/O module when using the Fixed ID addressing mode.
When using the service tool to configure the I/O module, this value corresponds to the Tx
parameter saved on the I/O module.
Frame
U8
0–1
Sets CAN message identifier length when using the Fixed ID addressing mode.
0: 11 bit ID
1: 29 bit ID
Node/N1
U8
0–15
The KWP2000 node address used for communications between the I/O module and the PLUS+1
®
Service Tool is Node/N1 x 8. For Variable ID addressing mode and Predefined addressing mode
this value also determines the CAN.
Net
U8
0–255
KWP2000 network used for communications between the I/O module and the PLUS+1
®
Service
Tool.
Enable
BOOL
——
Enables the function block to send CAN messages to the I/O module. An F/T transition or T at
power up starts initialization.
Enbl_RecheckCRC BOOL
——
Determines if the I/O module CRC is periodically checked to ensure the device’s configuration
matches the function block’s configuration.
T: The CRC is requested from the I/O module and compared every 5 seconds.
F: The CRC is only requested from the I/O module during initialization.
User Manual
PLUS+1® Compliant OX024-x10 Function Block
OX024-x10 Function Block
4 |
©
Danfoss | July 2018
11063395 | AQ00000104en-US0101
