HONEYWELL Expert PKS C300 Controller

HONEYWELL Expert PKS C300 Controller

In the field of process control, the capacity and performance of the controller directly determine the system's responsiveness, scalability, and operational reliability. The C300 controller in Honeywell's Expert Process Knowledge System (PKS) platform, as a high-performance control engine for the process industry, is widely used in automation control systems in industries such as petrochemicals, power, and pharmaceuticals due to its powerful processing capabilities, flexible I/O support, and excellent communication performance. This article will provide a comprehensive and in-depth professional interpretation of the system architecture, control network capacity, redundancy mechanism, communication performance, processing and memory models, engineering tool performance specifications, and I/O capacity of the C300 controller.

Overview of System Positioning and Architecture

The C300 controller is one of the core controllers based on the Control Execution Environment (CEE) in the Expert PKS platform. It shares a unified infrastructure and engineering tools with controllers such as C200, C200E, UOC, etc., providing users with comprehensive control capabilities from simple logic control to complex process regulation.

The C300 controller communicates with the upper system through Fault Tolerant Ethernet (FTE), supports connection with Control Firewall (CF9), and then connects to the L1 FTE control network. The system architecture is highly scalable and can flexibly configure servers, workstations, controllers, and I/O subsystems according to application requirements.

Control network capacity

The FTE control network where the C300 controller is located follows the following capacity limitations:

Parameter capacity

1 redundant network per Expert server (served by 1 or more redundant/non redundant servers)

330 FTE nodes per FTE community (standard); If there is FTEB or C300-20ms or deployment of EtherNet/IP ™， Then it is 200

200 Ethernet (non FTE) connections

The maximum number of controllers per server is 60 (redundant or non redundant)

Transmission rate of 100 Mbit/s (FTEB is 10 Mbit/s)

Key explanation:

When there are any FTEB, C300-20ms, or C300 deployments of EtherNet/IP in the FTE community ™  At that time, the upper limit of FTE nodes was reduced to 200.

PLCs connected to SCADA are not included in the "controller" quantity limit.

60 controllers can include any combination of CEE controllers (C200, C200E, C300, UOC, vUOC) and CDA controllers (up to 20 Safety Managers, up to 25 PMD Field Controllers, EHPM, etc.).

C300 configuration options

The C300 controller provides two types of CEE execution cycle configurations:

Configuration item 50 ms CEE 20 ms CEE

The supported control network FTE is only FTE

Supported C300 models CC-PCNT01/CC-PCNT02 CC-PCNT01/CC-PCNT02

Device index range 1-510 1-510

I/O links 2 2

I/O link rate 375 Kbaud (PMIO)/750 Kbaud (Series C) 750 Kbaud (Series C only)

Basic execution cycle 50 ms 20 ms

Redundancy support is

Remote I/O support supports PM I/O or Series A I/O, only Series C I/O is supported

I/O module execution cycle 50 ms 20 ms

Time source SNTP/PTPv2 SNTP/PTPv2

Important note:

C300 20ms CEE is only used for Honeywell Turbine Control Solutions (TMCS) in R410.1.

Extended features such as EIM and Profit Controller are only supported for CC-PCNT02 model.

C300 redundancy feature

C300 supports redundant configuration and achieves high availability through paired primary and backup controllers. Redundancy refers to the use of consecutive device indices (odd as primary, even as backup), connected via Ethernet STP cables.

Redundant specification 50 ms CEE 20 ms CEE

Function block redundancy configuration "module redundancy" optional "module redundancy" optional

Redundant IOTA quantity 2 2

Redundant cable lengths 36, 48, 60, 84 inches 36, 48, 60, 84 inches

Control processing switch interrupt time 1.25 seconds 200 ms

Initial synchronization time 240 seconds 240 seconds

OPM control freezing time 20 seconds 20 seconds

Attention: When configuring Direct or Through EIM-C300 EtherNet/IP ™  When switching, the interruption time may increase to 2.5 seconds.

Communication performance specifications

The communication performance of C300 controller is one of its core capabilities, and the following are key indicators:

1. Overall data access performance

Indicator 50 ms CEE 20 ms CEE

Maximum total parameter access response rate 32500 PPS 700 PPS

Maximum subscription parameters 34000 4000

Request/Response Parameter Access Rate 3000 PPM Read/1500 PPM Write 750 PPM Read/375 PPM Write

2. Point to point communication performance

Indicator 50 ms CEE 20 ms CEE

Maximum initiator Pull/Get subscription rate (inbound) 1000 PPS 250 PPS

Maximum target release rate (outbound) 1000 PPS 250 PPS

Peer to peer subscription capacity (by update rate)  100 @ 100ms / 200 @ 200ms / 500 @ 500ms / 1000 @ 1s 25 @ 100ms / 50 @ 200ms / 125 @ 500ms / 250 @ 1s

Point to Point Connection Unit (PCU) 30 5

3. Push/Store performance

Indicator 50 ms CEE 20 ms CEE

Maximum concurrent Push/Store requests 800 800

Maximum Push/Store Request Rate 250 PPS 12 PPS

4. Integer group transmission performance

Indicator 50 ms CEE 20 ms CEE

Maximum integer group size 8 KB (1000 float64) 8 KB (1000 float64)

Initiator array request rate 2500 EPS 600 EPS

Target array response rate 1500 EPS 350 EPS

5. PCDI (Modbus TCP) performance

Indicator 50 ms CEE 20 ms CEE

Maximum Modbus TCP devices 8 3

Maximum number of serial Modbus devices (per gateway) 16 3

Maximum PCDI request block message rate of 250 messages per second and 30 messages per second

Processing and Memory Capacity Model

The processing capability of the C300 controller is measured in "Execution Unit" (XU) units. C300 50ms CEE provides 5500 XU for user control, I/O, and communication purposes; C300 20ms CEE provides 5000 XU, but various operations in high-speed CEE contribute additional XU weights.

1. Reference for handling resource consumption (PU)

Typical module type 50 ms C300 (PU/module execution)

Typical I/O module 0.2

Simulated data acquisition module (10 AI) 4.4

Small simulation data acquisition module (1 AI) 0.5

Adjustment control module 3.1

Auxiliary Function Module (10 Auxiliary Blocks) 5.0

Digital data acquisition module (10 DI) 1.2

Equipment Control Module 1.3

Logic Control Module (20 Logic Blocks) 1.3

2. Memory resource (MU) consumption reference

C300 provides 214852 MU (Memory Unit, 1 MU=1 KB) of user memory. The maximum configurable number of labeled blocks is 24095, and each control module (CM) can contain up to 1100 component blocks.

Typical module type 50 ms C300 (MU/module)

Typical I/O module 0.5

Simulated data acquisition module 7.2

Adjustment control module 3.8

Auxiliary Function Module 6.2

Equipment Control Module 2.3

Logic Control Module 3.6

Sequential control module A (10 steps) 21.0

Sequential control module B (20 steps) 18.8

Formula control module A 30.4

I/O Capacity and IO UNIT Definition

The I/O capacity of the C300 controller is measured in units of "IO UNIT" (IOU), and different I/O devices consume different quantities of IOUs.

IO device or module IO UNIT consumption

1 PM IOP module 1

1 Series C I/O module 2

1 serial interface module (SIM) 6 (C300)

1 pulse input module (PIM) 1.5

1 Series C FIM4 4

1 Series C FIM8 8

1 non redundant FIM2 2

1 redundant FIM2 paired with 2

1 DHRIO module 0

1 SST-PFB-CLX Profibus module 4.5

1 DeviceNet Bridge Module (DNB) 4

Capacity limit:

The maximum IOU count for C300 50ms CEE is 64 (any combination), which can be extended to 80 if using only PM IOP or Series C IOM

The maximum IOU count for C300 20ms CEE is 12

The maximum number of IOUs per I/O link is 40 (50ms)/6 (20ms)

Performance specifications of engineering tools

Control Builder is the main engineering tool for C300 controllers, with the following performance specifications:

Rule description restrictions

1. Maximum number of labeled objects that can be operated on in the database (multi client) 6100

Typical CM numbers for database operations with 2 single clients 1000

The time for performing important database operations on 100 typical CMs is ≤ 20 minutes

The time for performing important database operations on 100 mixed typical objects is ≤ 10 minutes

5 QVCS verification operations with an additional 10% time

6 supported Control Builder clients (per cluster) 12

The number of clients that can perform important database operations simultaneously is 7

10 clients can perform controller related database operations on the same controller simultaneously. 2

11. 25000 mixed typical objects that can be exported or imported in a single operation

16 typical CM numbers that can be built in batches with a single operation of 700

22 Checkpoint Rebuild operation includes 5000 labeled objects

24 tagged object names with a maximum character count of 40

The maximum number of characters supported by 25 expressions is 1024

Comparison of C300-20ms and C300-50ms functions

The C300 20ms controller has been functionally constrained to meet the requirements of turbomachinery control applications

Function C300 50ms C300 20ms

Series C I/O support (maximum IOU limit) support (maximum 12 IOM, maximum 8 IOM per link)

PM I/O support not supported

FIM4/FIM8 support not supported

PGM support not supported

SCM/RCM/UCM/PHARE support not supported

CDB support not supported

Exchange block support not supported

Series C servo valve positioner module does not support support (turbine control)

Series C speed protection module does not support support (turbine control)

Profit Controller integration is only supported by CC-PCNT02 and is not supported

Ethernet Interface Module (EIM) is only supported by CC-PCNT02 and is not supported