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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 |
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- Industrial Automation
- Factory Automation
- Process Automation
- Etc…
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| Flow Chart |
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| Configuration Flow & PROFI-8x55 State-Machines
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| Features |
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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 |
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| Hardware Specifications |
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Model Name |
PROFI-8155 |
PROFI-8255 |
Hardware |
CPU |
80186, 80 MHz or compatible |
SRAM/Flash/EEPROM |
512 KB / 512 KB / 2 KB |
Watchdog |
Watchdog IC
CPU built-in |
Expansion Slot |
1 slot |
2 slots |
ESD Protection |
4 kV class A |
PROFIBUS Interface |
Controller |
Profichil VPC3+C |
Transceiver |
ADI ADM2486 |
Connector |
9-pin female D-Sub |
Baud Rate (bps) |
9.6 k, 19.2 k, 45.45 k, 93.75 k, 187.5 k, 500 k, 1.5 M, 3 M, 6 M, 12 M |
Transmission Distance (m) |
Depend on baud rate (for example, max. 1200 m at 9.6 kbps ) |
Isolation |
3000 VDC for DC-to-DC, 2500 Vrms for bus-to-logic |
Protocol |
DP-V0
DP-V1 |
UART Interface |
COM |
RS-232 on board (For updating firmware)Note 1. |
LED |
Round LED |
PWR LED, RUN LED, ERR LED |
Power |
Power supply |
Unregulated +10 ~ +30 VDC |
Protection |
Power reverse polarity protection, Over-voltage brown-out protection |
Power Consumption |
3 W |
Mechanism |
Installation |
DIN-Rail |
DIN-Rail or Wall Mounting |
Dimensions |
95 mm x 91 mm x 132 mm (W x L x H) |
Environment |
Operating Temp. |
-25 ~ 75 ℃ |
Storage Temp. |
-40 ~ 80 ℃ |
Humidity |
5 ~ 95% RH, non-condensing |
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| DP-V1 Service |
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PROFI-8155/8255 support MSAC1/MSAC2 Read/Write Services to acyclic access the information you want. The information you can access show follows:
- Vendor ID, Device Name, Firmware Version
- Module Name, Type, Data Format, Operation Mode, and Length of I/O Data
- Current I/O Status (replace traditional RD_INP, RD_OUPT Service), Safe-Value, Power-On Value
- 1.5K Non-Volatile Storage Space (User-Defined)
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| Comparison Table |
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Model |
PROFI-8155/8255 |
PROFI-8455 |
PROFIBUS Controller |
Profichil VPC3+C |
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. |
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| Modules Support |
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Type |
Module Name |
DI |
I-8040 / I-8051 / I-8052 / I-8053 / I-8058
I-87040 / I-87051 / I-87052 / I-87053 / I-87058
I-87040W / I-87046W / I-87051W / I-87052W / I-87053W / I-87053W-A5 / I-87058W / I-87059W |
DO |
I-8037 / I-8041 / I-8056 / I-8057 / I-8060 / I-8064 / I-8065 / I-8066 / I-8068 / I-8069
I-87041 / I-87057 / I-87064 / I-87065 / I-87066 / I-87068 / I-87069
I-87041W / I-87057W / I-87064W / I-87065W / I-87066W / I-87068W / I-87069W |
DI/O |
I-8042 / I-8050 / I-8054 / I-8055 / I-8063 / I-8077
I-87054 / I-87055 / I-87061W / I-87063
I-87054W / I-87055W / I-87063W |
AI |
I-8017H / I-8017HS
I-87013 / I-87017 / I-87018
I-87013W / I-87015W / I-87017W / I-87017W-A5 / I-87017RW / I-87017RCW / I-87018RW /I-87018ZW / I-87019RW |
AO |
I-8024
I-87022 / I-87024 / I-87026
I-87024W / I-87028CW |
Counter/Frequency |
I-8080
I-87082
I-87082W |
Motion |
I-8093W |
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| Ordering Information |
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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 Slot (RoHS) |
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