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Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

Brand advantage: Allen Bradley, BentlyNevada, ABB, Emerson Ovation, Honeywell DCS, Rockwell ICS Triplex, FOXBORO, Schneider PLC, GE Fanuc, Motorola, HIMA, TRICONEX, Prosoft etc. Various kinds of imported industrial parts

PP881 3BSE092978R1 Operation panel

The bytes EB0 and EB1 contain bit information. If the bit is set to 1, the condition is included in the description of the bits. Some bits are active during the fault (marked with "X"), others are 0.The modbus protocol can be switched over to ASCII mode (see protocol) using the FunctionCode 0x41. The setting is permanently saved in the slave. Standard value (upon delivery) is modbus RTU. Modbus output data master to MPA = heat request. Bit 1 (high power) set to 1 by master = V2 is opened in the states 18 (operation) and 19 (pause4) (parameter 38 is set to value 2). Bit 2 (remote unlocking) set to 1 by master (at least 0.5 s max. 5 s) = MPA is unlocked. Bit 6 (deactivate heat request) set to 1 by master = the bit 0 signal "heat request" is ignored, the automatic gas burner control system does not receive a heat request via the bus. The heat request is only possible via the hardware input. Use the following FunctionCodes to write these specifications. 05 (0x05) Write Single Coil (Coil = bit at bit address x) 06 (0x06) Write Single Register (to register address)

16 (0x10) Write Single Register (from register address) If it is not written on AB0, the MPA functions via the hardware inputs. Modbus input data MPA to master Input data is information about the state of the MPA. An EBx contains 16 bits. Use the following FunctionCodes to read this information. 03 (0x03) Read Holding Registers 01 (0x01) Read Coils.

Modbus

 9600 bauds, 19200 bauds, 19200 bauds and 57600 bauds The baud rate can be changed during operation by means of the FunctionCode 0x41 and is permanently saved in the slave. The relative parity bit can also be defined. None, Even and Odd are supported. Default values (upon delivery) are 19200 bauds and Even Parity A termination resistor is required on the first and the last device of the bus structure. Alternatively to internal termination (above), an external bus termination resistor can be connected instead of another bus cable. The bus cable shielding is to be connected to PE to avoid electromagnetic radiation.The EM 2/4 module includes an activation for the UV 4x / shutter. The use of the UV 4X / shutter allows to use an UV flame detector device UV 41 (HE) and UV 42 suitable for continuous operation. The shutter signal can also be used for continuous operation of one or more FLW 41I flame detector device (s). The control signal is independent from the use of the bus interface.

The multifunctional extension module EM 2/6 includes the following functions: - Relay outputs as a function of state - PWM output for speed control of DC fans with power input by a PWM signal - Voltage output 0..10V - Current output 4..20mA - Profibus interface - Modbus interface - Output for activation of the EM1/1 shutter module or the continuous operation function of the FLW 41l. For the EM 2/6 MPA 411x, art. no. 260751 the separately available mounting base MPA 411x WB, art. no. 261374 is required. The EM 2/6 for MPA 412x, art. no. 260 903 is mounted in the metal housing.