Control Head Type 8681
DeviceNet-Design
12. DEVICENET - DESIGN
12.1. Definition
• The DeviceNet is a field bus system which is based on the CAN protocol (Controller Area Network). It enables actuators and sensors (slaves) to be networked with higher-level controllers (master).
• The control head in the DeviceNet is a slave device according to the Predefined Master/Slave Connection Set stipulated in the DeviceNet specification. Polled I/O, Bit Strobed I/O and Change of State (COS) are supported as I/O connection variants.
• With DeviceNet it is necessary to differentiate between cyclical or event-driven high-priority process messages
(I/O Messages) and acyclical low-priority management messages (Explicit Messages).
• The protocol process conforms to the DeviceNet specification Release April 2010.
12.2. Electrical connection option
Cable gland with multi-pole connection
(M12 plug according to IEC 61076-2-101, 5-pole)
Connection left: Voltage, signals
Connection right: external initiator
Fig. 23: Connection concept DeviceNet
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12.3. DeviceNet specification
EDS file:
Icons:
Baud rate:
Address:
Process data:
8681.EDS
8681.ICO
125 kBit/s, 250 kBit/s, 500 kBit/s (can be adjusted using DIP switches 7, 8); factory setting: 125 kBit/s
(see Chapter “12.10.2. Setting the baud rate”)
0 ... 63 (via DIP switches 1 ... 6 adjustable); factory setting: 63
(see Chapter “12.10.1. Settings of the DeviceNet address”)
2 static input assemblies
(Input: from control head to DeviceNet master/scanner)
1 static output assembly
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