The Siemens 6ES7314-1AG14-0AB0 is a high-performance central processing unit within the SIMATIC S7-300 product family. This CPU 314 model offers a perfect balance of performance and memory for demanding automation tasks. It includes an integrated power supply that operates reliably at 24 V DC. Additionally, the hardware clock with battery backup ensures accurate time-stamping even during power outages. This module is an excellent choice for applications requiring more memory and faster processing than the base model.
The CPU's hardware functional status is 01, and it comes with firmware version V3.3. Engineering is straightforward using STEP 7 V5.5 + SP1 or higher. Alternatively, you can use STEP 7 V5.2 + SP1 with HSP 218. Its 128 KB work memory is integrated and cannot be expanded. Therefore, you need a Micro Memory Card (MMC) for load memory, supporting cards up to 8 Mbyte. The retentive memory for data blocks is 64 KB. Furthermore, the data management on the MMC is guaranteed for at least 10 years.
The CPU's rated supply voltage is 24 V DC. It can handle a lower limit of 19.2 V and an upper limit of 28.8 V. We recommend using a 2 A minimum external fuse for protection. The mains buffering time is 5 ms during a voltage dip. Its typical current consumption in no-load operation is 140 mA. Meanwhile, the rated current consumption is 650 mA. The typical inrush current reaches 3.5 A, with an I²t value of 1 A²·s. The typical power loss for this unit is only 4 W.
The Siemens 6ES7314-1AG14-0AB0 provides 128 KB of integrated work memory. It supports a maximum of 1,024 blocks, including DBs, FCs, and FBs. This number can vary based on the MMC used. DBs, FBs, FCs, and OBs each have a maximum size of 64 KB. The processing times are significantly faster than the CPU 312. For instance, a bit operation completes in just 0.06 µs. A word operation takes only 0.12 µs. Moreover, fixed-point arithmetic executes in 0.16 µs, while floating-point arithmetic takes 0.59 µs.
The CPU 314 features 256 S7 counters and 256 S7 timers with adjustable retentivity. It also supports unlimited IEC counters and timers via SFBs. The total retentive data area, including all data, is up to 64 KB. The flag area is 256 bytes, with retentivity available for MB 0 to MB 255. Furthermore, data blocks have adjustable retentivity. Local data per priority class is a maximum of 32 KB, with up to 2 KB per block.
This controller handles an I/O address area of 1,024 bytes for inputs and outputs. Its process image is also 1,024 bytes for both. For digital channels, it supports 1,024 inputs and 1,024 outputs centrally. For analog channels, it supports 256 inputs and 256 outputs centrally. The Siemens CPU 314 includes one integrated RS 485 interface for MPI communication. The maximum transmission rate is 187.5 kbit/s. It supports PG/OP communication, global data, and S7 basic communication. However, routing is not supported. It can act as an S7 communication server.
The 6ES7314-1AG14-0AB0 has a compact width of 40 mm, a height of 125 mm, and a depth of 130 mm. The unit weighs approximately 280 g. This compact design makes it ideal for space-constrained control panels.
During operation, the CPU supports an ambient temperature range from 0 °C to 60 °C. This ensures reliable performance in standard industrial settings. It features a hardware clock with a backup time of 6 weeks at 40 °C. The maximum deviation per day is 10 seconds, with a typical value of 2 seconds. The clock continues running after a POWER OFF.
Start by mounting the CPU on a standard S7-300 rail. This model supports up to 3 expansion units. You can use a maximum of 4 racks with 8 modules per rack. For complex setups, you can add communication processors (CPs). This unit can handle up to 10 CPs for LAN, 8 for PtP, and 8 for FM. Remember to insert a Micro Memory Card into the slot before starting the system.
The CPU 314 offers 12 total connections. This includes 11 for PG communication and 11 for OP communication. Additionally, 8 connections are available for S7 basic communication. The MPI interface supports PG/OP communication, global data, and S7 basic communication. For S7 communication, the unit acts as a server, supporting X_PUT and X_GET. The user data size is 180 bytes per job, with a maximum consistent data size of 240 bytes as a server.
Siemens 6ES7314-1AG14-0AB0 CPU Module (1 unit)
Front connector (1 unit)
Labeling strips (1 set)
Manual and documentation (on CD/DVD)
Shipping Method: Fedex, UPS, DHL
1. What type of memory card is required for the 6ES7314-1AG14-0AB0?
This CPU requires a SIMATIC Micro Memory Card (MMC) for its load memory. The maximum supported card size is 8 Mbyte.
2. Can I expand the work memory on this Siemens CPU 314?
No, the 128 KB work memory is integrated and not expandable. You must manage your program size within this limit.
3. Does the 6ES7314-1AG14-0AB0 have a battery-backed real-time clock?
Yes, it features a hardware clock with a backup time of 6 weeks. This ensures the clock retains the time even during power failures.
4. Which software is needed to program the Siemens CPU 314?
You need STEP 7 V5.5 + SP1 or higher. You can also use STEP 7 V5.2 + SP1 with HSP 218.
5. How many expansion modules can I connect to this CPU 314?
You can connect up to 3 expansion units. This allows for a total of 4 racks with up to 8 modules per rack.
| Brand Name | |
| Model No. | 6ES7314-1AG14-0AB0 |
| Product Type | Central Processing Unit |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
