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1769-OB8大中型PLC系统应支持多种现场总线和标准通信协议(如TCP/IP),需要时应能与工厂管理网(TCP/IP)相连接。通信协议应符合ISO/IEEE通信标准,应是开放的通信网络。
PLC系统的通信接口应包括串行和并行通信接口(RS2232C/422A/423/485)、RIO通信口、工业以太网、常用dcs接口等;大中型PLC通信总线(含接口设备和电缆)应考虑冗余配置,通信总线应符合国际标准,通信距离应满足装置实际要求。PLC系统的通信网络中,上级的网络通信速率应大于1Mbps,通信负荷不大于60%。PLC系统的通信网络主要形式有下列几种形式:
1)PC为主站,多台同型号PLC为从站,组成简易PLC网络;
2)1台PLC为主站,其他同型号PLC为从站,构成主从式PLC网络;
3)PLC网络通过特定网络接口连接到大型DCS中作为DCS的子网;
4)PLC网络(各厂商的PLC通信网络)。
PLC为减轻CPU通信任务,根据网络组成的实际需要,应选择具有不同通信功能的(如点对点、现场总线、工业以太网)通信处理器。
1769-OB8
LA10VO71DFR1/31R-PSC91N00 PISTON PUMP REXROTH
Bosch Rexroth/ Indramat DDS3.1-W030-DS01-01-FW
A10VO71DRG/31L-PRC92K08 PISTON PUMP BOSCH REXROTH
MSK100D-0300-NN-S1-BG2-NNNN REXROTH
Rexroth Hydraulic Servo Valve 4WS2EM10-45/10B #21498
REXROTH 0-608-841011 USPP 0608841011
REXROTH 0-608-841016 USPP 0608841016
REXROTH INDRAMAT DKC02.3-040-7-FW NEW DKC0230407FW
NEW REXROTH INDRAMAT MHD093C-058-PGO-AN SERVO MOTOR
AA2FM45/61W-VSD510 AXIS PISTON MOTOR REXROTH
A10VO71DR/31R-PSC92N00 PISTON PUMP BOSCH REXROTH
A10VO71DFR/31R-PSC92N00 AXIAL PISTON PUMP BOSCH REXROTH
NEW REXROTH INDRAMAT MHD112B-024-PG0-BN SERVO MOTOR
NEW REXROTH INDRAMAT MHD090B-035-PG0-UN SERVO MOTOR
NEW/REFURB REXROTH INDRAMAT DKC04.3-040-7-FW SERVO DRIV
REXROTH INDRAMAT SERVO MAC093B-0-0S-3-C/130-A-0/S001
REXROTH 4WRE10W64-12/24Z4/M VALVE 4WRE10W641224Z4M
REXROTH INDRAMAT SERVO-MOTOR MDD115A-N-030-N2M-130GA1
REXROTH/INDRAMAT HZF01.1-W025N AC DRIVE
REXROTH A10VSO 71 DFR HYDRAULIC PUMP
REXROTH 1070080542-404 USPP 1070080542404
REXROTH VTS0950-1X/2S-D-1-CL-WRD-16-V200-4X/10L2 USPP V
AA2FM32/61W-VSD520 AXIAL PISTON MOTOR REXROTH
A10VO60DRG/52R-VSC62K52 AXIAL PISTON PUMP BOSCH REXROTH
REXROTH INDRAMAT SERVO DRIVE HDS HDS03.2-W075N
AA2FM28/61W-VBD516 MOTOR BOSCH REXROTH MFG R902080978
REXROTH Proportional Valve, New
NEW REXROTH INDRAMAT MHD093C-058-PP0-AA SERVO MOTOR
REXROTH Krohne H250/RR/M9 variable-area flowmeter
Rexroth Indramat PM Motor MHD093B-035-PGO-AA
NEW REXROTH INDRAMAT MHD093C-058-PGO-BN SERVO MOTOR
1769-OB8