BLAHAJ
/
libsigrok
10
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

gmc-mh-1x-2x-rs232: Completed energy measurement ranges (V, A, W) for Metrahit 29S.

This commit is contained in:
Matthias Heidbrink 2014-09-01 14:58:26 +02:00 committed by Uwe Hermann
parent ee2bcdfc44
commit 5791bdf604
2 changed files with 25 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

43
src/hardware/gmc-mh-1x-2x/protocol.c
View File

@ -282,8 +282,6 @@ static void decode_rs_18(uint8_t rs, struct dev_context *devc)
* identify relative mode.
*/
}
else if (devc->vmains_29S)
devc->scale *= pow(10.0, range - 2);
else
devc->scale *= pow(10.0, range - 5);
break;
@ -346,8 +344,8 @@ static void decode_spc_18(uint8_t spc, struct dev_context *devc)
*/
static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
{
if ((ctmv > 0x1c) || (!devc)) {
sr_err("decode_ctmv_2x(%d): invalid param(s)!", ctmv);
if ((ctmv > 0x20) || (!devc)) {
sr_err("decode_ctmv_2x(0x%x): invalid param(s)!", ctmv);
return;
}
@ -373,6 +371,7 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
case 0x04: /* 00100 mA DC */
case 0x05: /* 00101 mA AC+DC */
devc->scale1000 = -1;
/* Fall through! */
case 0x06: /* 00110 A DC */
case 0x07: /* 00111 A AC+DC */
devc->mq = SR_MQ_CURRENT;
@ -409,11 +408,14 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
devc->mqflags |= SR_MQFLAG_DC;
break;
case 0x0d: /* 01101 W on power, mA range (29S only) */
devc->scale *= 0.001;
devc->scale *= 0.1;
/* Fall through! */
case 0x0e: /* 01110 W on power, A range (29S only) */
devc->scale *= 0.1;
devc->scale1000 = -1;
devc->mq = SR_MQ_POWER;
devc->unit = SR_UNIT_WATT;
devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS);
break;
case 0x0f: /* 01111 Diode */
case 0x10: /* 10000 Diode with buzzer (actually cont. with voltage) */
@ -437,7 +439,8 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
devc->unit = SR_UNIT_CELSIUS;
/* This can be Fahrenheit. That is detected by range=4 later. */
break;
/* 0x13 10011, 0x14 10100 unsed */
/* 0x13 10011 unused */
/* 0x14 10100 unused */
case 0x15: /* 10101 Press (29S only) */
/* TODO: What does that mean? Possibly phase shift?
Then we need a unit/flag for it. */
@ -452,8 +455,7 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
case 0x17: /* 10111 TRMS V on mains (29S only) */
devc->mq = SR_MQ_VOLTAGE;
devc->unit = SR_UNIT_VOLT;
devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_RMS);
devc->vmains_29S = TRUE;
devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS);
break;
case 0x18: /* 11000 Counter (zero crossings of a signal) */
devc->mq = SR_MQ_VOLTAGE;
@ -468,11 +470,11 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
if (ctmv <= 0x19)
devc->mqflags |= SR_MQFLAG_DC;
break;
case 0x1b: /* 11011 pulse on mains (29S only) */
/* TODO: No unit or flags for this yet! */
devc->mq = SR_MQ_VOLTAGE;
devc->unit = SR_UNIT_UNITLESS;
devc->mqflags |= SR_MQFLAG_AC;
case 0x1b: /* 11011 Milliamperes in power mode (29S only); error in docs, "pulse on mains" */
devc->mq = SR_MQ_CURRENT;
devc->unit = SR_UNIT_AMPERE;
devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS);
devc->scale1000 = -1;
break;
case 0x1c: /* 11100 dropout on mains (29S only) */
/* TODO: No unit or flags for this yet! */
@ -480,14 +482,20 @@ static void decode_ctmv_2x(uint8_t ctmv, struct dev_context *devc)
devc->unit = SR_UNIT_UNITLESS;
devc->mqflags |= SR_MQFLAG_AC;
break;
case 0x1f: /* 11111 Undocumented: 25S in stopwatch mode.
case 0x1d: /* 11101 Voltage in power mode (29S); undocumented! */
devc->mq = SR_MQ_VOLTAGE;
devc->unit = SR_UNIT_VOLT;
devc->mqflags |= (SR_MQFLAG_AC | SR_MQFLAG_DC | SR_MQFLAG_RMS);
break;
/* 0x1e: 11110 Undocumented */
case 0x1f: /* 11111 25S in stopwatch mode; undocumented!
The value is voltage, not time, so treat it such. */
devc->mq = SR_MQ_VOLTAGE;
devc->unit = SR_UNIT_VOLT;
devc->mqflags |= SR_MQFLAG_DC;
break;
case 0x20: /* 100000 Undocumented: 25S in event count mode.
Value is 0 anyway. */
case 0x20: /* 100000 25S in event count mode; undocumented!
Value is 0 anyway. */
devc->mq = SR_MQ_VOLTAGE;
devc->unit = SR_UNIT_UNITLESS;
break;
@ -517,8 +525,6 @@ static void decode_rs_2x(uint8_t rs, struct dev_context *devc)
case SR_MQ_VOLTAGE:
if (devc->unit == SR_UNIT_DECIBEL_VOLT)
devc->scale *= pow(10.0, -3);
else if (devc->vmains_29S)
devc->scale *= pow(10.0, range - 2);
else
devc->scale *= pow(10.0, range - 6);
break;
@ -634,7 +640,6 @@ static void clean_ctmv_rs_v(struct dev_context *devc)
devc->unit = 0;
devc->mqflags = 0;
devc->scale1000 = 0;
devc->vmains_29S = FALSE;
clean_rs_v(devc);
}

2
src/hardware/gmc-mh-1x-2x/protocol.h
View File

@ -75,6 +75,7 @@ enum model {
METRAHIT_26SM = METRAHIT_25S + 1, /**< Send mode */
METRAHIT_26S = METRAHIT_26SM + 1, /**< Bidi mode */
METRAHIT_26M = METRAHIT_26S + 1, /**< Bidi mode */
/* The Metrahit 27x and 28Cx have a totally different protocol */
METRAHIT_28S = METRAHIT_26M + 1,
METRAHIT_29S = METRAHIT_28S + 1,
};
@ -101,7 +102,6 @@ struct dev_context {
float value; /**< Measured value */
float scale; /**< Scale for value. */
int8_t scale1000; /**< Additional scale factor 1000x. */
gboolean vmains_29S; /**< Measured ctmv is V mains (29S only). */
int addr; /**< Device address (1..15). */
int cmd_idx; /**< Parameter "Idx" (Index) of current command, if required. */
int cmd_seq; /**< Command sequence. Used to query status every n messages. */