IFM AL1940 - Read Input Data of Several IO-Link Ports

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ifm Device Manual IO-Link Master with Modbus interface CabinetLine 8 Ports IP 20 (AL1940) 05 / 2018
Configuration Modbus
>
8.3.3 Read input data of several IO-Link ports
8702
Register area for compact access to the input data of the IO-Link ports X01…X04 and X05...X08: →
Input Data (→ p. 78)
The area contains the following data:
 Combined digital inputs - clamp 2 / clamp 4 (DI) of the IO-Link ports
 Status information of the IO-Link ports
 Status information of the IO-Link devices
 Combined input data - IO-Link of the IO-Link ports
Observe the general rules for access to the Modbus registers (→ Rules for accessing the Modbus
register (→ p. 58))!
The parameter "Invalid Data" indicates whether the read IO-Link input data is valid.
► Together with the input data, also read and evaluate the corresponding status information
of the IO-Link devices!
Register area
Contents
Access
Start
address
Length
(words)
197
1
Port X01…X04: Digital Input - clamp 2 / clamp 4 (DI)
r
198
1
Port X01…X04: Status Information IO-Link Ports
r
199
1
Port X01…X04: Status Information IO-Link Devices
r
2n
Port X01…X04: Compact Input Data - IO-Link (4n bytes)
r
297
1
Port X05…X08: Digital Input - clamp 2 / clamp 4 (DI)
r
298
1
Port X05…X08: Status Information IO-Link Ports
r
299
1
Port X05...X08: Status Information IO-Link Devices
r
2n
Port X05…X08: Compact Input Data - IO-Link (4n bytes)
r
r = read only
n = [2,4,8,16,32]; is determined by parameters [Process Data Length] (→ Configuration Area (→ p. 73))