Rockwell-automation 1203 Serial Communications Module Series A Manual de usuario descargar pdf (Pagina 38)

Chapter 5

Configuration and Interfacing

5-2

Table 5.A

PCCC Commands Supported by the Communications Module

CMD

Code

FNC

Code

Command Name PLC Addressing Method

01h n/a Unprotected Read PLC-2 Address

06h 00h Echo n/a

01h Read Diagnostic Counters Variable (modified PLC-2 addresses)

02h Set Variables (#ENQs, #NAKs, TIMEOUT) n/a

03h Identify Host and Some Status n/a

04h Set Timeout n/a

05h Set #NAKs n/a

06h Set #ENQs n/a

07h Reset Diagnostic Counters n/a

09h Read Link Parameters Logical Address

0Ah Set Link Parameters Logical Address

08h n/a Unprotected Write PLC-2 Address

0Fh 67h Typed Write System Address (4 possibilities)

68h Typed Read System Address (4 possibilities)

A2h Protected Typed Logical Read File#/Type/Element#/Sub-element#

AAh Protected Typed Logical Write File#/Type/Element#/Sub-element#

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 67 68

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Rockwell-automation 1203 Serial Communications Module Series A Manual de usuario Pagina 38