This module performs as the PROFIBUS-DP master device (referred to as the master device) to communicate and exchange data with PROFIBUS-DP slave devices (*1) (referred to as the slave device).
This PROFIBUS-DP communication module can be mounted on field control units (AFV30 , AFV40 ). It can also be mounted on the ESB bus node unit (ANB10) and the optical ESB bus node unit (ANB11 ) which are connected to AFV30 or AFV40 .
*1: The PROFIBUS-DP slave devices represent the field bus devices connected to a PROFIBUS-DP communication cable.
PROFIBUS remote I/O, PLC, and others are among the PROFIBUS-DP slave devices. HART devices and 4-20 mA analog equipment are connected to PROFIBUS remote I/O. ALP121 module can also be connected with PROFIBUS-PA devices via a PROFIBUS DP/PA coupler and refer to the PROFIBUS-PA device data.
HARDWARE SPECIFICATIONS
Hardware specifications for ALP121 PROFIBUS-DP communication module are as shown below.
PROFIBUS-DP Communication Module Hardware Specifications
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Item
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Specifications
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Model
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ALP121
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Interface
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PROFIBUS-DP
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Connection method
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EIA-RS-485-compliant
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Signal isolation
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Isolated between filed and the system
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Transmission speed
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9600 bps to 12 Mbps
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Maximum transmission distance
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1.2 km per segment (at the communication speed of 9600 bps)
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Number of communication port
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One port
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Communication port
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D-sub 9 pin (female) (*1)
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Maximum current consumption
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0.7 A
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Weight
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0.3 kg
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*1: The cables, connectors, and terminators must comply with PROFIBUS-DP standards (PROFIBUS Specifications IEC61158-2 type3).