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> Data Acquisition > Rack Based Data Acquisition > Profibus I/O Expansion Racks > PROFI-8255

PROFIBUS Remote I/O Unit with 2 Expansion Slots. Communicable over Profibus DP and RS-232 protocol. Supports operating temperatures from -25℃ ~ +75℃ (-13F ~ 167F).

PROFI-8255

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PROFIBUS Remote I/O Unit with 2 Expansion Slots. Communicable over Profibus DP and RS-232 protocol. Supports operating temperatures from -25℃ ~ +75℃ (-13F ~ 167F).

  Price:  $849.00  

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Features

The PROFI-8155/8255 Remote I/O Unit is specially designed for the slave device of PROFIBUS DP protocol. It supports up to 1/2 slots for ICPDAS I-8k series, I-87k Low Profile series, and I-87k High Profiles series I/O modules. In addition, we also provide hot-swap function for I-87k High Profiles series I/O modules. To setup network, users can choose and configure I/O modules by using the GSD file without any other setting tools.
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Applications

 
  • Industrial Automation
  • Factory Automation
  • Process Automation
  • Etc…
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Configuration Flow & PROFI-8x55 State-Machines
 
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Features

 
Protocol & Hierarchy
DP-V0 & DP-V1 (Read/Write) Slave
Supports Transmission Rate (Kbps)
9.6, 19.2, 45.45, 93.75, 187.5, 500, 1500, 3000, 6000, 12000
Transmission Rate Setting
detected automatically
Address Setting
0~126 set by Rotary switches
SSA-telegram set by DP-Master(Class 2 only)
Indicators
PWR, ERR, and RUN LEDs
I/O modules Configuration
Configured by GSD file
Supports I/O modules hot-swap
I-87K High Profile series
Network Isolation Protection
High Speed iCoupler
DC Isolation Protection
3000VDC on PROFIBUS side
4KV ESD Protection
Contact for each terminal
 

Hardware Specifications

 
Model
PROFI-8155
PROFI-8255
CPU
80186, 80MHz
Flash
512K Bytes
SRAM
512K Bytes
EEPROM
2K Bytes
Watch Dog Timer
CPU built-in
Com1
RS-232(F/W update port at JP1)
PROFIBUS Interface
9-pin D-Sub(Female)
PROFIBUS Controller
Siemens SPC3
PROFIBUS Transceiver
ADI ADM2486 iCoupler Isolated Transceiver
Transmission Rate
Up to 12Mbps
I/O Expansion Slot
1 Slot
2 Slots
Power Requirement
10~ 30 VDC
Power Supply
8W
Power Consumption
3W
Operating Temp.
-25℃ ~ +75℃
Storage Temp.
-30℃ ~ +85℃
Humidity
5% ~ 95%
Dimensions
64x119x91 (Unit: mm)
95x132x91 (Unit: mm)

DP-V1 Service

 
PROFI-8155/8255 support MSAC1/MSAC2 Read/Write Services to acyclic access the information you want. The information you can access show follows:
  1. Vendor ID, Device Name, Firmware Version
  2. Module Name, Type, Data Format, Operation Mode, and Length of I/O Data
  3. Current I/O Status (replace traditional RD_INP, RD_OUPT Service), Safe-Value, Power-On Value
  4. 1.5K Non-Volatile Storage Space (User-Defined)
 

Specifications

Comparison Table

 
Model
PROFI-8155/8255
PROFI-8455
PROFIBUS Controller
Siemens SPC3
PROFIBUS Transceiver
ADI ADM2486 iCoupler Isolated Transceiver
PROFIBUS Protocol
DP-V0 & DP-V1(R/W)
Max. 3 Link for DPV1
Max 64 Byte per Transaction
DP-V0 only
I/O Expansion Slot
1 Slot / 2 Slot
4 Slots
Max. Modules Power Consumption
5W
20W
Acyclic I/O Data-Exchange
Reading
N/A
Power-On Value(i-87K only)
Read/Write by DP-V1
N/A
Safe Value
Write by Set-Prm*
Read by DP-V1
Write by Set-Prm*
Data Storage
1.5KByte by DP-V1
N/A
Channel-Related Diagnosis
32Ch
79Ch
Note: *: Safe Value wrote during the Wait-Parameterization stage. You must be set that at configuration tools, otherwise it apply the default value.
 

Modules Support

 
Type
Module Name
DI
DO
DI/O
AI
AO
Counter/Frequency
 

Ordering Information

 
PROFI-8155-G CR
PROFIBUS Remote I/O Unit with 1 Expansion Slot (RoHS)
PROFI-8255-G CR
PROFIBUS Remote I/O Unit with 2 Expansion Slots (RoHS)

References and Support

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