The Siemens 6ES7151-8AB01-0AB0 is an IM151-8 PN/DP CPU interface module for the SIMATIC ET 200S distributed I/O system. It integrates a 192 KB work memory CPU (based on S7-314) directly into the interface module, allowing it to function as an intelligent stand-alone controller within a distributed I/O station.
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6ES7151-8AB01-0AB0Order(MOQ) :
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3~5 daysWeight :
5kg| Specification | Description |
|---|---|
| Manufacturer | Siemens |
| Model | 6ES7151-8AB01-0AB0 |
| Product Family | SIMATIC DP / ET 200S |
| Product Type | IM151-8 PN/DP CPU Interface Module |
| Work Memory | 192 KB (integrated, not expandable) |
| CPU Basis | S7-314 CPU |
| Load Memory | SIMATIC Micro Memory Card (MMC), max. 8 MB (required for operation) |
| Data Retention | Ensured by SIMATIC MMC (maintenance-free), min. 10 years |
| Processing Times | Bit: 0.06 µs; Word: 0.12 µs; Fixed-point: 0.16 µs; Floating-point: 0.59 µs |
| Integrated Interface | PROFINET (3 x RJ45 ports, internal switch) |
| PROFINET IO Controller | Up to 128 IO devices; RT and IRT supported |
| PROFIBUS DP | Not integrated; requires optional DP Master Module (6ES7138-4HA00-0AB0) |
| Max. I/O Modules | 63 ET 200S modules per station |
| Max. I/O Address Area | 2,048 bytes inputs / 2,048 bytes outputs |
| Supply Voltage | 24 V DC (20.4 – 28.8 V) |
| Current Consumption | Typ. 352 mA (426 mA with DP master module) |
| Power Loss | Typ. 5.5 W |
| Dimensions (W x H x D) | 60 x 119.5 x 75 mm |
| Weight | Approx. 200 g (net 0.387 kg) |
| Engineering Software | STEP 7 V5.5 or higher |
| Firmware Version | V3.2 |
| Lifecycle Status | Cancelled (PM410) since October 1, 2023 – spare part only |
| Model | Description | Typical Application |
|---|---|---|
| 6ES7151-8AB01-0AB0 (this model) | IM151-8 PN/DP CPU, 192 KB, 3x RJ45 PROFINET | Stand-alone control in ET 200S station with PROFINET |
| 6ES7151-7AA21-0AB0 | IM151-7 CPU, 128 KB, PROFIBUS DP slave | Legacy ET 200S stations with PROFIBUS connectivity |
| 6ES7151-8FB01-0AB0 | IM151-8F PN/DP CPU (fail-safe), 256 KB | PROFINET + safety applications up to SIL3 |
| 6ES7151-8AB01-0AB0 (spare) | Same module as spare part | Replacement for existing installations |
| 6ES7138-4HA00-0AB0 | DP Master Module (optional add-on) | Enables IM151-8 CPU to act as PROFIBUS DP Master |
| 6ES7953-8LJxx-0AA0 | SIMATIC Micro Memory Card (MMC) | Required for CPU operation (various capacities) |
| 6ES7151-3BA23-0AB0 | IM151-3 PN/DP interface module (no CPU) | Standard ET 200S station without local intelligence |
Q1: Can the 6ES7151-8AB01-0AB0 function as a stand-alone PLC?
Yes. The IM151-8 PN/DP CPU is an "intelligent pre-processor" that can execute discrete control tasks independently. It can be used as a stand-alone CPU within an ET 200S station, allowing machine-level control to be distributed rather than centralized.
Q2: Does this module require an MMC card to operate?
Yes. The IM151-8 PN/DP CPU only operates when a SIMATIC Micro Memory Card (MMC) is inserted. The MMC serves as the load memory and provides maintenance-free data retention (minimum 10 years). Maximum MMC capacity is 8 MB .
Q3: Can the IM151-8 CPU be used as a PROFIBUS DP Master?
Yes, with an optional add-on. By inserting the DP Master Module (6ES7138-4HA00-0AB0), the IM151-8 CPU can be extended to function as a PROFIBUS DP Master. It supports up to 32 DP devices and provides SYNC/FREEZE and equidistance capabilities .
Q4: What are the key differences between IM151-7 and IM151-8?
The IM151-8 (this model) features PROFINET connectivity with 3 RJ45 ports and 192 KB work memory, while the IM151-7 has PROFIBUS DP connectivity and 128 KB work memory. The IM151-8 is the newer generation with integrated Ethernet switch functionality.
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