Siemens SIMATIC HMI OP3 User Manual

12-6
Operator Panel OP3
Edition 11/99
12.3.1 Control and Response Bits
Three bytes are present in the interface area for the control and response
bytes. Bytes n+0 and n+1 are used to synchronize the OP3 and the S7. Byte
n+3 is not applicable to the OP3.
Byte n+0 is used by the OP3 to request the current time and the date from the
S7. The illustration shows the structure of the data byte.
7 6 5 4 3 2 1 0
Requesting date and time
Bit 2 Requesting date and time
1 = The OP3 requests the date and time every hour
2 = The S7 program has updated the data and time in the
interface area
Byte n+1 is used by the S7 to detect the OP3 restarting.
The illustration shows the structure of the data byte.
7 6 5 4 3 2 1 0
OP3 start-up
Bit 0 1 = The OP3 has started up
Bit 0 in data byte n + 1 is set by the OP3 upon termination of start-up. You
can reset the bit in the S7 program and thus detect restarting of the OP3.
12.3.2 Connection ID
The OP3 enters the connection ID (MPI/PPI) in byte n+13.
This means that the connection ID can be evaluated by the S7.
The illustration shows the structure of the data byte.
Connection ID
0
7
0 = Connection via the MPI
1 = Connection via the PPI
Purpose
Byte n+0:
Requesting
date and time
Byte n+1:
Detecting an
OP start-up
Byte n+13
Communication

Siemens SIMATIC HMI OP3 Specifications

General

Touchscreen	No
Power Supply	24 V DC
Protection Class	IP65
Weight	0.5 kg
Display Type	LCD
Keys	Function keys
Communication Ports	RS-232
Operating Temperature	0 to 50 °C

Summary

Part I Introduction

1 Product Description

Provides information about the OP3's functionality and operating capabilities.

2 Functionality

Details the features and capabilities of the OP3 device.

Part II Functions of the OP3

3 General Operation

Explains how to operate the OP3 using its keyboard and keypad.

4 Using the OP3 with Its Standard Functions

Describes how to utilize the standard functions and screens of the OP3.

5 Screens

Details the OP3's screen display, components, and management.

6 Password Protection

Covers methods for preventing unauthorized access using passwords and levels.

7 Messages

Explains the display and handling of event and system messages on the OP3.

8 Timers and Counters

Describes how to access and use timers and counters via the OP3.

9 STATUS VAR and FORCE VAR Functions with the OP3

Explains how to view and modify PLC operands using OP3 functions.

10 System Settings on Standard Screens

Details how to configure system settings like language, date, and time.

11 Process-Dependent Operator Guidance

Covers configuring soft keys and screen hierarchies for guided operation.

12 Communication

Explains how to connect the OP3 to SIMATIC S7 automation systems.

Part III Installation and Commissioning

13 Installation

Provides instructions for physically installing the OP3 unit.

14 Commissioning

Details the steps for initial setup and putting the OP3 into operation.

Part IV Device Description, Test and Monitoring Functions

15 Device Description

Covers the physical dimensions and connection elements of the OP3.

16 Test and Monitoring Functions

Explains how to perform hardware tests and monitor OP3 functions.

Part V Appendices

A Brief Description of Standard Screens

Provides an overview of standard screens, their functions, and password levels.

B System Messages

Lists and explains system messages, their causes, and actions.

C Technical Data

Lists the technical specifications and parameters of the OP3 device.

D ESD Guidelines

Details precautions for handling electrostatically sensitive devices.

E SIMATIC HMI Documentation

Outlines the structure and components of SIMATIC HMI documentation.