ABB AC 31 - Page 5

Summary
Summary - Page 4 ABB Control - AC 31
1SBC 260400 R1001-b 06.99
Chapter 6
Program Optimization
1. Sub-program 6-3
1.1. Programming sub-programs 6-3
1.2. Calling a sub-program 6-4
1.3. Passing parameters 6-5
1.4. Limits 6-5
2. Interruptions 6-7
2.1. Programming interruptions 6-7
2.2. Validation of interruptions 6-8
2.3. Performances 6-8
3. Step motor command 6-9
4. High speed counter with value capture, zero reset and overflow
detection 6-11
5. Communication between central units on the CS 31 bus 6-13
5.1. CS 31 bus addressing 6-13
5.2. Communication type 6-13
5.3. Programming 6-14
5.3.1. Bit transmission 6-14
5.3.2. Transmission by word 6-15
5.3.3. Utilization of the function blocks 6-17
Chapter 7
Communication
1. Network communication with the incorporated MODBUS
interface 7-3
1.1. Protocol description 7-3
1.2. Communication configuration 7-5
1.3. Programming 7-6
1.3.1. MODBUS slave unit 7-6
1.3.2. MODBUS master unit 7-6
1.3.3. List of cross references 7-6
1.3.4. Example using the MODBUS
function 7-9
1.4. Reply times for MODBUS communication 7-10
2. Point to point communication with the incorporated ASCII
interface 7-13
2.1. Protocol description 7-13
2.2. Configuration of the communication 7-13
2.2.1. Using the black 07 SK 51 or 07 SK 53 cable 7-13
2.2.2. Communication parameters 7-13
2.3. Programming 7-14
2.3.1. Sending messages 7-14
2.3.2. Receiving messages 7-14
2.3.3. Programming example 7-14
3. Point to point communication with the programming protocol 7-17