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2 functions of devices in dvp-plc – Delta Electronics Programmable Logic Controller DVP-PLC User Manual

Page 132

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2 Functions of Devices in DVP-PLC

DVP-PLC Application Manual

2-104

Contents:

1. SA/SX/SC can use external interruption to store the present value in the middle-high-speed counter into D1180 ~

D1181, D1198 ~ D1199

2. The

function:

a) For SA/SX, X0 (pulse input point) has to work with X4 (external interruption point), C235/C251/C253 (high-speed

counter) and I401 (interruption No.). D1180 and D1181 are the registers to store the 32-bit values. X1 (pulse input

point) has to work with X5 (external interruption point), C236 and I501. D1198 and D1199 are the registers to

store the 32-bit values.

b) For SC, X10 (pulse input point) has to work with X4 (external interruption point), C243/C255 (high-speed counter)

and I401 (interruption No.). D1180 and D1181 are the registers to store the 32-bit values. X11 (pulse input point)

has to work with X5 (external interruption point), C245 and I501. D1198 and D1199 are the registers to store the

32-bit values.

Function Group

MODEM Connection Function

Number

M1184 ~ M1188

Contents:

1.

The system connection

PC

WPLSoft is executing.

MODEM

MODEM

Telecommunication

network

DVP-EH/EH2 series MPU

DVP-F232 interface

2.

Special M for MODEM connection for EH/EH2:

Device No.

Function

Note

M1184

Enable MODEM

On: The following actions are valid

M1185

Initialize MODEM

Off: Initialization is completed

M1186

Fail to initialize MODEM

Off: M1185 = On

M1187

MODEM initialization is completed

Off: M1185 = On

M1188

Shows if MODEM is connected

On: Connecting

Note: The special Ms are both applicable when PLC is in RUN or STOP status.

3.

How to conntect (Please follow the steps below):

a) Set “On” M1184 (Enable PLC MODEM connection).

b) Set “On” M1185 (Enable initialization of MODEM from PLC).

c) Check if the initialization of MODEM is successful from M1186, M1187.

d) Wait for the connection.

4. Note:

a) When PLC is to be connected with MODEM, a RS-232 extension card is required. If there is no RS-232

extension card, all special M above will be invalid.