RCU501是一款船舶设备控制模块。其CPU运行速度为400 MHz，为32位CPU。内存方面，它拥有32 MB 64位、133 MHz的SDRAM和ECC，以及16 MB的灰烬存储器。
RCU501模块具有丰富的输入/输出通道，包括20个AI/AO/DI/DO通道，其中AI可以支持电流、电压、PT100或电位计；AO支持电流或电压（仅信道1至16）；DI支持无电势或Namur；DO为高压侧驱动器。此外，还有4个继电器输出通道和8个AI/AO通道，±10V。除四个继电器外的所有输入/输出通道的输出通道被回路监控。
RCU501还配备了DSP（数字信号处理器）用于控制RIO，并具有七条通用RS-232/422/485串行线接口，其中两个是隔离的。它还具有单串行过程总线(SPBus)接口、远程输入/输出(RIO)装置、双CAN总线接口（需要适配器卡）和双Pro总线接口（需要适配器卡）。同时，它还支持双以太网LAN接口(10BASE-T/ 100BASE-T)。
RCU501模块的电源输入为24 VDC ± 20%，其功耗最大为20W。其物理尺寸为：高度355mm，宽度158mm，深度87mm，重量为1.35kg。
RCU501作为电源模块时，具有稳定的电压和电流输出，提供过电流保护、过载保护、短路保护等功能，并可能支持远程控制和监控。
RCU501 is a Marine equipment control module. Its CPU runs at 400 MHz and is a 32-bit CPU. In terms of memory, it has 32 MB 64-bit, 133 MHz SDRAM and ECC, and 16 MB of ash memory.
The RCU501 module has a wealth of input/output channels, including 20 AI/AO/DI/DO channels, where AI can support current, voltage, PT100 or potentiometer; AO supports current or voltage (channels 1 to 16 only); DI supports no potential or Namur; DO is a driver on the high voltage side. In addition, there are 4 relay output channels and 8 AI/AO channels, ±10V. The output channels of all input/output channels except four relays are monitored by the loop.
The RCU501 is also equipped with a DSP (digital signal processor) for controlling the RIO and has seven universal RS-232/422/485 serial line interfaces, two of which are isolated. It also has a single Serial process bus (SPBus) interface, remote input/output (RIO) device, dual CAN bus interface (adapter card required), and dual Pro bus interface (adapter card required). It also supports dual Ethernet LAN interfaces (10BASE-T/ 100BASE-T).
The RCU501 module has a power input of 24 VDC ± 20% and a maximum power consumption of 20W. Its physical dimensions are: height 355mm, width 158mm, depth 87mm, weight 1.35kg.
When used as a power module, the RCU501 has stable voltage and current output, provides overcurrent protection, overload protection, short circuit protection and other functions, and may support remote control and monitoring.
| SYN5202-0277 3BHB006715R0277 | CI871K01 3BSE056767R | 5SHY4045L0001 |
| 5SHY4045L0001 | PCD232A 3BHE022293R0101 | PM866AK01 |
| PM866AK01 | GOP2 | PFTL101B 5.0KN 3BSE004191R1 |
| PFTL101B 5.0KN 3BSE004191R1 | PU519 3BSE018681R1 | PFSK113 7625013-S |
| PFSK113 7625013-S | REC670 | EL3020 |
| EL3020 | PP846 | AFCO94AE02 |
| AFCO94AE02 | REF620 NBFNAANNNDA1BBN1XF | SW-1200063 |
| SW-1200063 | REF620E F NBFNAANNNCC1BNN1XF | PFEA113-65 3BSE050092R65 |
| PFEA113-65 3BSE050092R65 | SYN5202-0271 | PM866K01 3BSE050198R1 |
| PM866K01 3BSE050198R1 | HIEE205011R0002 | PP865 3BSE042236R1 |
| PP865 3BSE042236R1 | PM866A 3BSE076359 | 129740-002 |
| 129740-002 | UNITROL 1020 UNSO119A-Z,V1 3BHE030579R0003 | 5SHX1445H0001 3BHL000391P0101 |
| 5SHX1445H0001 3BHL000391P0101 | SPHSS13 | PFSA140 3BSE006503R1 |
| PFSA140 3BSE006503R1 | MPRC086444-005 | UNITROL 1020 |
| UNITROL 1020 | AO2020 | PM866 3BSE050200R1 |
| PM866 3BSE050200R1 | SYN5202-0277 3BHB006715R0277 | KUC755AE106 3BHB005243R0106 |
| KUC755AE106 3BHB005243R0106 | UNITROL 1020 | HIEE400995R0002-3004223/010-UM B015 |
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