ICP DAS USA PROFI-8455 Guide de configuration

Quick Start User Guide

Introduction

This user guide introduces the user how to implement the PROFI-8455

into their applications in a quick and easy way. Therefore, it only provides

the basic instructions. For more detail information about the PROFI-8455,

please refer to the PROFI-8455 user manual in the ICP DAS product CD or

download it from ICP DAS web site.

PROFI-8455 Hardware Structure

Status

Indicator

Address

PROFIBUS

(Data Comm.) I/O Expansion Slot

(Module Installation)

Console

(Prog. DL.)

Power Input

PROFI-8455 Connector and Pin Assignment

The PROFIBUS connector is a standard 9-pin D-Sub connector, there are

only 4 pins used in PROFI-8455. The pins VP and GND support the 5 volt

power to active terminal resistor, and the A-Line and B-Line is the data bus.

Pin No. Signal Meaning

3 B-Line Receive/Transmit data – plus

5 GND Power ground of active terminator

6 VP Power 5 volt of active terminator

8 A-Line Receive/Transmit data - minus

PROFI

8455

–

PROFIBUS

Remote I/O Unit

Status Indicator

PROFI-8455 provide three types of status indicators, they are PWR LED

(yellow), ERR LED (red) and RUN LED (green).

Status Indicator Meaning Recommend solution

ERR ON &

RUN OFF PROFI-8455 is offline

with no valid baud rate

(offline mode*)

Check the address setting of

PROFI-8455 and DP-master.

ERR Flash

(0.1 Sec) PROFI-8455 detects

baud rate, but is still

offline.(stop mode*)

Check the DP-Master is

ready to communicate with

PROFI-8455.

ERR Flash

(0.5Sec) PROFI-8455 Prm is

Fault.(Note 1) Check the setting of

PROFI-8455 in the master

interface and make sure of

the consistency.

ERR Flash

(1 Sec) PROFI-8455’s Cfg is

fault(Note 2) Same as above

ERR ON & RUN

ON PROFI-8455 is in clear

mode*. Sets the DP-Master from

clear mode to operation

mode

ERR OFF & RUN

ON PROFI-8455 is in

operation mode*.

PWR Flash

(1 Sec) PROFI-8455 detect

module(s) offline Find the reason of the fault of

corresponding module.

Terminating Resistors

In order to minimize the reflection effect of the signal transmission,

PROFIBUS device has to fit with an active terminal resistor at both first

node and last node. The connection of active terminating resistors is shown

in above circuit diagram. The PROFI-8455 doesn’t have any terminating

resistors inside. Therefore, users must add the terminator in external. In

general, PROFIBUS connector has terminating resistors inside, and there

is a switch to control the ON/OFF of the terminating resistors, as shown

below.

Terminator Switch

Terminator OFF

Terminator ON

PROFI-8455 – Setting and Module Installation

The following steps can help users to set and apply the PROFI-8455.

1. Load GSD file into the DP-Master Configuring software

DP-Master configuring software (Siemens Step7 or

ProfiCaptain etc...) loads IPDS0B0C.gsd file, and make sure of

the “PROFI-8455” label in “I/O” category. Finally, Loading

PROFI-8455 into PROFIBUS at the software and activate it.

2. Select I/O modules

Choose PROFI-8455 and add I/O module that you want to use.

Modify the system parameter “WD_On”, “Freeze/Sync Req.”,

“Lock/Unlock Req”, “Group-ID assignment”, etc… (modify by

user’s preference)

3. Set Parameter Data

Wait parameterization is an important step before data

exchange. In this stage, DP-Master provides the essential

parameter to PROFI-8455 include user parameters and module

parameters. Therefore, it must finish this setting before data

exchange.

1. User Parameter:

“User parameter”also called “system parameter”is the basic

parameters. The number of parameter is fixed regardless of the

number of modules. In PROFI-8455, there are two kinds of

parameter. They are Byte Order and Diagnosis Repot Period.

Byte-Order Parameter: If your system obeys the INTEL

data format, you should select Little-Endian mode; otherwise,

you should select Big-Endian mode.

Diagnosis Report Period Parameter: This parameter

dominates the time interval of each diagnostic message report.

The unit of this period is millisecond. The maximum time

interval is 65536 ms, the minimum is 0 ms.

2. Module Parameters:

The most of modules must be initialized before applying

them. Module parameters provide information about Operation

Code, Data Code or Enable Diagnosis, etc… Please refer to the

manual to know more information about these parameters.

4. Download Setting and Program into DP-Master

Users load the setting and program into DP-Master, and let it

go.

Users must finish these steps before starting to communicate with

PROFI-8455.

5. Module Installation:

In the expansion slots, users install the modules, and make

sure of correct installation. Notice that address mapping is order

by slot id of installed module (from left to right), and the

expansion slot that without module will be skipped.

6. Address Setting:

There are two hexadecimal rotary switches in PROFI-8455

panel. They dominate the address of PROFI-8455. The switch

labeled LSB is represented the low nibble of the address, and

the switch labeled MSB is represented the high nibble of the

address. For advance setting, please refer to PROFI-8455

User’s Manual.

After finishing the procedure, DP-Master will establish the connection

with PROFI-8455 and execute program automatically. RUN_LED indicates

the status of connection that you can observe.

PROFI-8455 – state flow chart

The state machine of PROFI-8455 is shown below. If your PROFI-8455

can’t establish connection with DP-Master, you can see Q/Ato solve it.

PROFI-8455 – Q&A

1. Q: How do I know the status of the PROFI-8455?

A: You can observe the RUN LED in PROFI-8455 panel. If RUN LED

is light, data is exchanging. Otherwise it must be error in the

previous state. You can see Q&A 3 to solve it.

2. Q: Have I must set the PROFI-8455’s address before power

applied?

A: You can change the address after power applied, but you should

let the PROFI-8455 offline at least 5 second. After 5 second offline,

PROFI-8455 will reset by itself, and then apply the new setting of the

rotary switches.

3. Q: If PROFI-8455 couldn’t establish communication with DP-Master,

what can I do?

A: In General, the PROFI-8455’s error is due to the following

reasons.

1. Parameter Fault- PROFI-8455’s ERR LED will have an interval of

0.5 second in each flash. It may reduce from “error module

selection”.

2, Configuration Fault-PROFI-8455’s ERR LED will have an interval

of 1 second in each flash. It may reduce from “error installation

order”.

3, DP-Master OFFLINE-PROFI-8455’s ERR LED will light until

establish data exchange connection. You should switch DP-Master

status from OFFLINE to OPERATE.

4, DP-Master STOP-PROFI-8455’s ERR LED will flash quickly

(time interval may less then 0.5 second). You should switch

DP-Master status from STOP to OPERATE.

4. Q: Which Modules is faster among the same Module Number

(I-87017 and I-8017H)?

A: I-8K series is faster than I-87K series. It is due to the

communication interface, I-8K use Parallel interface, and I-87K use

the serial communication.

5. Q: I feel that the reaction time of analog module in I-87K is slow. Why

does it?

A: It is due to low sampling rate. Beside the I-87017 series module,

the remainder analog input module has sampling rate with 10Hz

maximum. If you want to use the high sampling module, I-8017H and

I-87017 is the best choice.

6. Q: how can I use the additional function of I-87082?

A: Please refer to the “Byte Order and Data Address” chapter in

the PROFI-8455 user’s manual.

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