Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario descargar pdf (Pagina 91)

Message Packet Formats

Chapter 5

5-12

able 5.B

Contents

of Status DA

A for 1771-KA2, -KC/KD, -KE/KF; 1770-KF2; 1771-KG, 1774-KA; and

1785-KA Modules

Byte Bit Value Meaning

1 Operating

Status of PC Processor — For the 1770-KF2, this byte is always 0. For the 1785-KA, it has one of these values:

0 =

Standby Mode

1 =

On-Line Mode

0-2 0

Program Load Mode

est Mode

Run Mode

(Not Used)

Remote Program Load

Remote T

est

3 0

Normal

No Communication with PC

4 0

Normal

Download Mode

5 0

Normal

Format Error in Communication Zone of PC Program

6, 7

Always Zero

ype of Station Interface Module and Processor

NOTE:

The 1770-KF2 identifies itself as a station interface module with a “3” in Byte 2, Bits 0 to 3 (i.e., as a 1771-KE/KF).

0-3 0

1771-KC/KD Module

1771-KA Module

1774-KA Module

1771-KE/KF or 1770-KF2 Module

1771-KG Module

1771-KGM Module

1775-KA, Data Highway Port

1775-KA, RS-232-C Port

1773-KA, Data Highway Port

1773-KA, RS-232-C Port

(Unused)

PLC-5 Processor Interface

(Unused)

Check Interface Module Expansion Byte (Byte 3)

Computer

4-7 0

PLC Processor

PLC-2 Processor

PLC-2/20 (LP1) Processor

Mini-PLC-2 Processor

PLC-3 Processor

PLC-2/20 (LP2) Processor

PLC-2/15 Processor

PLC-2/30 Processor

PLC-4 Microtrol Processor

(Not Used)

PLC-5 Processor Interface

(Not Used)

Check Processor Expansion Byte (Byte 4)

Computer

3-4 Octal W

ord Address of the Start of PC Program — For the KF2 module, these are always 0. For the 1785-KA module, these are the

expansions of the interface module type bits and the processor type bits, respectively

. Both have a value of 16.

5-6

Memory Size (Number of Bytes) for PLC Processors; Zero Otherwise — For the 1785-KA module, this is the starting address of the counters on

the link other than the one from which the diagnostic read command was issued.

7-8

Starting Byte Address of Diagnostic Counters and T

imers — For the 1785-KA module, this is the starting address of the counters on the link

from which the diagnostic read command was issued.

Series and Revision Level of Station Interface Module

NOTE:

The Series A 1770-KF2 identifies itself as Series “D” in Byte 9, Bits 5 to 7.; Series B KF2 identifies itself as Series E; and so on.

0-4

5-7

Revision A

Revision B, etc.

Series A

Series B, etc.

Settings of the Option Switches on the Station Interface Module — This byte is not used in replies by 1771-KC/KD or -KE/KF modules. For the

other modules, the bits of this byte are defined as follows:

1771-KA2 MODULE

0-1 0

57,600 Bits per Second

Undefined

2 0

All Other PLC-2 Family Processors

PLC-2 Processor

3 0

Protected Commands Enabled

Protected Commands Disabled

4 0

Unprotected Commands Enabled

Unprotected Commands Disabled

5 -- Not Used

6 0

Physical Writes Enabled

Physical Writes Disabled

7 0

ransmission Unprotected Commands Enabled

ransmission Unprotected Commands Disabled

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 234 235

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Rockwell-automation 1770-KF2 Data Highway or Highway Plus Interface Mo Manual de usuario Pagina 91

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