Manual

Table Of Contents

NA-9379

Specification

Revision 1.02

FnBus PIO N/A

Page 16

Sub-function 0x0065(101) Return Slave Watchdog Error Count

The response data field returns the quantity of watchdog error addressed to the remote device since its last restart, clear

counters operation, or power–up.

Sub-function Data Field (Request) Data Field (Response) Description

0x0065(101) 0x0000 Watchdog Error Count

Sub-function 0x0066(102) Change Slave IO Output Status

The sub-function with data fields is to clear watchdog counter and change IO output status. This may be used to

simulate clear output and fault output.

Sub-function Data Field (Request) Data Field (Response) Description

0x0066(102) 0x0000 Echo Request Data Ready output,

automatically turns

Normal output

0x0066(102) 0x0001, 0x0002, 0x0003 Echo Request Data Clear output

0x0066(102) 0x0004 Echo Request Data Normal output

0x0066(102) 0x0005, 0x0006, 0x0007 Echo Request Data Fault output

3.1.8. 15 (0x0F) Write Multiple Coils

This function code is used to force each coil in a sequence of coils to either ON or OFF in a remote device. The Request

PDU specifies the coil references to be forced. Coils are addressed starting at zero. A logical '1' in a bit position of the

field requests the corresponding output to be ON. A logical '0' requests it to be OFF.

The normal response returns the function code, starting address, and quantity of coils forced.

• Request

Field name Example

Function Code 0x0F

Starting Address Hi 0x10

Starting Address Lo 0x00

Quantity of Outputs Hi 0x00

Quantity of Outputs Lo 0x0A

Byte Count 0x02

Output Value#0 0x55

Output Value#1 0x01

• Response