Modicon Quantum Automation Platform Page 2-38 I/O architectures and Hot Standby architectures

2/38 Hot Standby CPUs The front panel of 140CPU67060, 140CPU67160, 140CPU67260, 140CPU67261 and 140CPU67861 Hot Standby CPUs comprises: 1 An LCD display cover, providing access to: 2 A key switch: v Unlocked: All system operations can be invoked and all changeable module parameters can be modified via the LCD and keypad. The memory is not write-protected. v Locked: No system operations can be invoked and all changeable module parameters are read-only. The memory is write-protected. This state increases data security. 3 One backup battery slot 4 A reset button (Restart) 5 An LCD display (2 lines of 16 characters) with brightness and contrast controls. 6 A 5-button keypad with 2 LEDs (ESC, ENTER, MOD, Z , C ) 7 An RJ45 connector for connecting to the Modbus bus 8 A type B female USB connector for connecting the programming PC terminal 9 A 9-way female SUB-D connector for connecting to the Modbus Plus network 10 Two slots for PCMCIA memory expansion cards (1) 11 Two LEDs: v COM LED (green): activity on the Hot Standby primary or secondary drop v ERR LED (red): communication error between the Hot Standby primary and secondary drops 12 A optical fibre connector for interconnecting the primary and secondary PLCs in the Hot Standby architecture: v An MT-RJ multimode optical fibre connector for the 140CPU67060 , 140CPU67160 and 140CPU67260 v An LC single mode optical fibre connector for the 140CPU67261 and 140CPU67861 Mini operator dialogue terminal The mini operator dialogue terminal, located on the front of the 140CPU67060, 140CPU67160, 140CPU67260, 140CPU67261 and 140CPU67861 Hot Standby CPUs, gives the user direct information (RUN, STOP, No Conf) on the PLC status, without a programming terminal. It can also be used to display, and if necessary to modify, a certain number of operating parameters, using the 5 navigation buttons: ESC, ENTER, MOD, Z and C . Four main command functions are accessible from a menu/sub-menu tree structure: b Quantum PLC operating mode: PLC Operations b Communication port parameter settings: Communications b System information: System Info b LCD screen settings: LCD Settings The PLC Operations menu is used to execute the following commands: b Start PLC b Stop PLC b Init PLC It can also be used to go into the Hot Standby sub-menu offering commands specific to the standby system. It is possible to display ( State sub-menu) the active/inactive state (with regard to standby) of the PLC which the user is working on, and this sub-menu also offers the option of forcing ( Mode sub-menu) this PLC to active/inactive state. The other sub-menus are: b Order: delivers topological information on the current PLC b Diag: fives, if necessary, error information on the state of the standby system b Transfer: is used to transfer the content of the Primary PLC memory to that of the Standby PLC, for updating (1) Except for 140CPU67861, which is already equipped with the large RAM memory size up to 11 MB, only the lower slot is available for PCMCIA memory expansion cards. Mini operator dialogue terminal Description Modicon Quantum automation platform Hot Standby system Unity Pro 1 [2, 3, 4] 5 6 8 7 10 11 12 9 140CPU67160 Overview: page 2/6 Quantum Ethernet I/O: page 2/14 S908 bus: page 2/30 Presentation: page 2/34 References: page 2/40 2 1 3 4 5 6 7 8 9 10 2 1 3 4 5 6 7 8 9 10

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