PC Control / Profi Control 645-12M Instruction Manual pdf - Kuhnke
PC Control / Profi Control 645-12M Instruction Manual pdf - Kuhnke PC Control / Profi Control 645-12M Instruction Manual pdf - Kuhnke
Addressing 4.8.3. Types of addressing: summary The load command is used to give a summary of the different types of addressing. Load contents of an operand L M00.00 1bit address L BM00.00 8bit address LD BM00.00 16bit address Load constant value 8bit constant (0...255): L 100 decimal L $64 hexadecimal L %01100100 binary L ´A´ ASCII 16bit constant (0...65535): LD 10000 decimal LD $3FEA hexadecimal LD %0010011100010000 binary LD 4.5V voltage (-10...+10V) LD 5mA current(-20...+20mA) Load contents of an offset-addressed operand with constant offset (0...255): L M00.00[10] 1bit address L BM00.00[10] 8bit address LD BM00.00[10] 16bit address with variable offset in the local operand (0...255): L M00.00[BM01.00] 1bit address L BM00.00[BM01.00] 8bit address LD BM00.00[BM01.00] 16bit address with variable offset in the external operand (0...255) L M00.00[BI03a00.] 1bit address L BM00.00[BI03a00.] 8bit address LD BM00.00[BI03a00.] 16bit address 4 - 44
PC Control 645-12M on PROFIBUS 4.9. PC Control 645-12M on PROFIBUS PC Control 645-12M is a programmable logic controller without any I/Os of its own. PROFIBUS is the medium via which the controller communicates with the appropriate I/ O devices, i.e. the DP slaves. In this type of network, PC Control 645-12M acts as a DP master (class 1). The protocol used for communication between master and slaves is called PROFIBUS-DP. This protocol supports data transfer rates (baud rates) of up to 12 Mbit/s which all network devices must be capable to sustain, however. If there are slower devices in the network, the master is to be set to the relevant baud rate by means of VEBES. PC Control can maintain connections to up to 99 slaves whose addresses are to be in the range from 0 to 99. A process image memory provides the interface between PROFIBUS (and, thus, the DP slaves connected to it) and the master's user memory. VEBES, the network configurator, divides the process image up, making the individual memory locations available as "external operands". see chapter "4.5.2. External operands" The following sections describe the extended functions for the handling of DP slaves and data traffic via PROFIBUS. Although they are not absolutely required for "normal" operation they do help you take specific action to react to special situations. 4 - 45
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- Page 51 and 52: 4.3. Memory settings PC Control 645
- Page 53 and 54: 4.4. PLC working method PC Control
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- Page 57 and 58: 4.5.2. External operands as process
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- Page 61 and 62: 4.5.3.1. Status of PROFIBUS master
- Page 63 and 64: 4.5.3.2. PEaxx.yy: DP slave status
- Page 65 and 66: 4.6. Summary of commands PC Control
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- Page 73 and 74: 4.6.4. Shift and rotation commands
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- Page 115 and 116: A. Specifications Specifications A.
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- Page 121 and 122: PROFIBUS hardware installation B.1.
- Page 123 and 124: PROFIBUS hardware installation B.2.
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- Page 129 and 130: Index A accumulator 3-9 functional
- Page 131 and 132: Index memory range 3-4 in DOS and W
Addressing<br />
4.8.3. Types of addressing: summary<br />
The load command is used to give a summary of the different<br />
types of addressing.<br />
Load contents of an operand<br />
L M00.00 1bit address<br />
L BM00.00 8bit address<br />
LD BM00.00 16bit address<br />
Load constant value<br />
8bit constant (0...255):<br />
L 100 decimal<br />
L $64 hexadecimal<br />
L %01100100 binary<br />
L ´A´ ASCII<br />
16bit constant (0...65535):<br />
LD 10000 decimal<br />
LD $3FEA hexadecimal<br />
LD %0010011100010000 binary<br />
LD 4.5V voltage (-10...+10V)<br />
LD 5mA current(-20...+20mA)<br />
Load contents of an offset-addressed operand<br />
with constant offset (0...255):<br />
L M00.00[10] 1bit address<br />
L BM00.00[10] 8bit address<br />
LD BM00.00[10] 16bit address<br />
with variable offset in the local operand (0...255):<br />
L M00.00[BM01.00] 1bit address<br />
L BM00.00[BM01.00] 8bit address<br />
LD BM00.00[BM01.00] 16bit address<br />
with variable offset in the external operand (0...255)<br />
L M00.00[BI03a00.] 1bit address<br />
L BM00.00[BI03a00.] 8bit address<br />
LD BM00.00[BI03a00.] 16bit address<br />
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