Flowserve DDC-100 Modbus Direct-to-Host Manuale Utente Scaricare il pdf (Pagina 8)

10 DDC-100 Direct-to-Host Programming Guide FCD LMAIM4019-00 FCD LMAIM4019-00 DDC-100 Direct-to-Host Programming Guide 11

Table 3.4 – Status Bit Deﬁnitions (continued)

Bit Number

Modbus

Bit

Address

UEC-3-DDC and DDC-100 Clamshell I/O Module

179 178 Open torque switch User Input 10

180 179 Open limit switch User Input 11

181 180 Close torque switch User Input 12

182 181 Close limit switch User Input 13

183 182 Aux. Open Input User Input 14

184 183 Aux. Close Input User Input 15

185 184 User Input 0 User Input 0

186 185 User Input 1 User Input 1

187 186 User Input 2 User Input 2

188 187 User Input 3 User Input 3

189 188 User Input 4 User Input 4

190 189 User Input 5 User Input 5

191 190 Input 6 User Input 6

192 191 Input 7 User Input 7

193 192 Analog Input 1 lost Analog Input 1 lost

194 193 Analog Input 2 lost Analog Input 2 lost

195 194 Analog Input 3 lost Analog Input 3 lost

196 195 Analog Input 4 lost Analog Input 4 lost

197 196 Network Channels A/B timed out Network Channels A/B timed out

198 197 Reserved Reserved

199 198 Reserved Reserved

200 199 Reserved Reserved

201 200 Reserved Reserved

202 201 Reserved Reserved

203 202 Reserved Reserved

204 203 Reserved Reserved

205 204 Lost Phase Input User Input 18

206 205 Phase Reverse Input User Input 19

207 206 Input 8 User Input 16

208 207 Input 9 User Input 17

Example

Poll ﬁeld unit number 22 for 16 inputs starting at input 129 with the actuator opening.

Query 1602008000107B09

Response 1602020108CDED

Message Breakdown

Query Response

16 Slave (Field Unit) Address 16 Slave (Field Unit) Address

02 Function 02 Function

00 Starting Address Hi 02 Byte Count

80 Starting Address Lo 01

Data (Inputs 10136 - 10129)

00 No. of Points Hi 08

Data (Inputs 10144 - 10137)

10 No. of Points Lo CDED Error Check (CRC)

7B09 Error Check (CRC)

Note 1: 01h equals 0000 0001 (actuator open input bit is ON).

Note 2: 08h equals 0000 1000 (actuator Channel B Fail bit is ON).

3.2.3 Modbus Function Code 03 (Read Holding Register)

This function code is used to read the binary contents of holding registers in the DDC-100 Field

Unit. This function code is typically used during the network polling cycle. A network poll should

consist of ﬁeld unit registers 9 (Status) and 10 (Fault) as a minimum. Holding register 8 should

also be polled when the actuator is conﬁgured for the analog feedback option or position control.

See Table 3.5 for a complete listing of the holding registers.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 32 33

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Flowserve DDC-100 Modbus Direct-to-Host Manuale Utente Pagina 8

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